122554628257 has 8 divisors (see below), whose sum is σ = 123101731584. Its totient is φ = 122007705888.

The previous prime is 122554628249. The next prime is 122554628279. The reversal of 122554628257 is 752826455221.

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

It is a cyclic number.

It is not a de Polignac number, because 122554628257 - 2³ = 122554628249 is a prime.

It is a super-2 number, since 2×122554628257² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122554628257.

It is not an unprimeable number, because it can be changed into a prime (122554628057) 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, 1417288 + ... + 1501270.

It is an arithmetic number, because the mean of its divisors is an integer number (15387716448).

Almost surely, 2^122554628257 is an apocalyptic number.

It is an amenable number.

122554628257 is a deficient number, since it is larger than the sum of its proper divisors (547103327).

122554628257 is an equidigital number, since it uses as much as digits as its factorization.

122554628257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90479.

The product of its digits is 2688000, while the sum is 49.

The spelling of 122554628257 in words is "one hundred twenty-two billion, five hundred fifty-four million, six hundred twenty-eight thousand, two hundred fifty-seven".