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122714891489 is a prime number
BaseRepresentation
bin111001001001001100…
…0001010010011100001
3102201202012201101111002
41302102120022103201
54002310003011424
6132212514001345
711602663236641
oct1622230122341
9381665641432
10122714891489
11480523a22a3
121b948b76255
13b7587b5c38
145d21b34521
1532d34cccae
hex1c9260a4e1

122714891489 has 2 divisors, whose sum is σ = 122714891490. Its totient is φ = 122714891488.

The previous prime is 122714891479. The next prime is 122714891491. The reversal of 122714891489 is 984198417221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99666490000 + 23048401489 = 315700^2 + 151817^2 .

It is a cyclic number.

It is not a de Polignac number, because 122714891489 - 216 = 122714825953 is a prime.

Together with 122714891491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122714891479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61357445744 + 61357445745.

It is an arithmetic number, because the mean of its divisors is an integer number (61357445745).

Almost surely, 2122714891489 is an apocalyptic number.

It is an amenable number.

122714891489 is a deficient number, since it is larger than the sum of its proper divisors (1).

122714891489 is an equidigital number, since it uses as much as digits as its factorization.

122714891489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 56.

The spelling of 122714891489 in words is "one hundred twenty-two billion, seven hundred fourteen million, eight hundred ninety-one thousand, four hundred eighty-nine".