122908125430657 has 8 divisors (see below), whose sum is σ = 140487391127232. Its totient is φ = 105334100250000.

The previous prime is 122908125430633. The next prime is 122908125430667. The reversal of 122908125430657 is 756034521809221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122908125430657 is a prime.

It is a super-2 number, since 2×122908125430657² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122908125430598 and 122908125430607.

It is not an unprimeable number, because it can be changed into a prime (122908125430667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310078719 + ... + 1310172532.

It is an arithmetic number, because the mean of its divisors is an integer number (17560923890904).

It is a 1-persistent number, because it is pandigital, but 2⋅122908125430657 = 245816250861314 is not.

Almost surely, 2^{122908125430657} is an apocalyptic number.

It is an amenable number.

122908125430657 is a deficient number, since it is larger than the sum of its proper divisors (17579265696575).

122908125430657 is an equidigital number, since it uses as much as digits as its factorization.

122908125430657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620257959.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 122908125430657 in words is "one hundred twenty-two trillion, nine hundred eight billion, one hundred twenty-five million, four hundred thirty thousand, six hundred fifty-seven".