70623101 has 2 divisors, whose sum is σ = 70623102. Its totient is φ = 70623100.

The previous prime is 70623097. The next prime is 70623107. The reversal of 70623101 is 10132607.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69722500 + 900601 = 8350^2 + 949^2 .

It is an emirp because it is prime and its reverse (10132607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70623101 - 2² = 70623097 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70623107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35311550 + 35311551.

It is an arithmetic number, because the mean of its divisors is an integer number (35311551).

Almost surely, 2^70623101 is an apocalyptic number.

It is an amenable number.

70623101 is a deficient number, since it is larger than the sum of its proper divisors (1).

70623101 is an equidigital number, since it uses as much as digits as its factorization.

70623101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 70623101 is about 8403.7551725404. The cubic root of 70623101 is about 413.3477656395.

Adding to 70623101 its reverse (10132607), we get a palindrome (80755708).

The spelling of 70623101 in words is "seventy million, six hundred twenty-three thousand, one hundred one".