122928651 has 32 divisors (see below), whose sum is σ = 198336000. Its totient is φ = 74952864.

The previous prime is 122928623. The next prime is 122928667. The reversal of 122928651 is 156829221.

It is not a de Polignac number, because 122928651 - 2¹⁴ = 122912267 is a prime.

It is a super-2 number, since 2×122928651² = 30222906473359602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122928601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10746 + ... + 19008.

It is an arithmetic number, because the mean of its divisors is an integer number (6198000).

Almost surely, 2^122928651 is an apocalyptic number.

122928651 is a deficient number, since it is larger than the sum of its proper divisors (75407349).

122928651 is a wasteful number, since it uses less digits than its factorization.

122928651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8320 (or 8314 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 122928651 is about 11087.3193784611. The cubic root of 122928651 is about 497.2228042610. Note that the first 3 decimals are identical.

The spelling of 122928651 in words is "one hundred twenty-two million, nine hundred twenty-eight thousand, six hundred fifty-one".