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707120081 is a prime number
BaseRepresentation
bin101010001001011…
…100101111010001
31211021120102101122
4222021130233101
52422010320311
6154100012025
723344264403
oct5211345721
91737512348
10707120081
11333172868
12178991015
13b3663165
1469cacb73
154212c0db
hex2a25cbd1

707120081 has 2 divisors, whose sum is σ = 707120082. Its totient is φ = 707120080.

The previous prime is 707119999. The next prime is 707120087. The reversal of 707120081 is 180021707.

707120081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499299025 + 207821056 = 22345^2 + 14416^2 .

It is a cyclic number.

It is not a de Polignac number, because 707120081 - 226 = 640011217 is a prime.

It is a super-2 number, since 2×7071200812 = 1000037617906893122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 707120081.

It is not a weakly prime, because it can be changed into another prime (707120087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353560040 + 353560041.

It is an arithmetic number, because the mean of its divisors is an integer number (353560041).

Almost surely, 2707120081 is an apocalyptic number.

It is an amenable number.

707120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

707120081 is an equidigital number, since it uses as much as digits as its factorization.

707120081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 707120081 is about 26591.7295601471. The cubic root of 707120081 is about 890.9043036770.

Adding to 707120081 its reverse (180021707), we get a palindrome (887141788).

The spelling of 707120081 in words is "seven hundred seven million, one hundred twenty thousand, eighty-one".