122425631 has 4 divisors (see below), whose sum is σ = 125411664. Its totient is φ = 119439600.

The previous prime is 122425627. The next prime is 122425651. The reversal of 122425631 is 136524221.

It is a happy number.

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 122425631 - 2² = 122425627 is a prime.

It is a super-2 number, since 2×122425631² = 29976070251496322, which 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 122425631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122425621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492955 + ... + 1493036.

It is an arithmetic number, because the mean of its divisors is an integer number (31352916).

Almost surely, 2^122425631 is an apocalyptic number.

122425631 is a deficient number, since it is larger than the sum of its proper divisors (2986033).

122425631 is an equidigital number, since it uses as much as digits as its factorization.

122425631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986032.

The product of its digits is 2880, while the sum is 26.

The square root of 122425631 is about 11064.6116515674. The cubic root of 122425631 is about 496.5436706279.

Adding to 122425631 its reverse (136524221), we get a palindrome (258949852).

The spelling of 122425631 in words is "one hundred twenty-two million, four hundred twenty-five thousand, six hundred thirty-one".