122617631 has 4 divisors (see below), whose sum is σ = 123234000. Its totient is φ = 122001264.

The previous prime is 122617619. The next prime is 122617633. The reversal of 122617631 is 136716221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122617631 - 2¹⁸ = 122355487 is a prime.

It is a super-2 number, since 2×122617631² = 30070166864104322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122617594 and 122617603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122617633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307886 + ... + 308283.

It is an arithmetic number, because the mean of its divisors is an integer number (30808500).

Almost surely, 2^122617631 is an apocalyptic number.

122617631 is a deficient number, since it is larger than the sum of its proper divisors (616369).

122617631 is an equidigital number, since it uses as much as digits as its factorization.

122617631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616368.

The product of its digits is 3024, while the sum is 29.

The square root of 122617631 is about 11073.2845624051. The cubic root of 122617631 is about 496.8031113695.

The spelling of 122617631 in words is "one hundred twenty-two million, six hundred seventeen thousand, six hundred thirty-one".