122404631 has 6 divisors (see below), whose sum is σ = 129186432. Its totient is φ = 115961940.

The previous prime is 122404619. The next prime is 122404657. The reversal of 122404631 is 136404221.

It is not a de Polignac number, because 122404631 - 2¹⁰ = 122403607 is a prime.

It is a super-2 number, since 2×122404631² = 29965787380492322, 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 = 122404597 and 122404606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122404661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169175 + ... + 169896.

It is an arithmetic number, because the mean of its divisors is an integer number (21531072).

Almost surely, 2^122404631 is an apocalyptic number.

122404631 is a deficient number, since it is larger than the sum of its proper divisors (6781801).

122404631 is an equidigital number, since it uses as much as digits as its factorization.

122404631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339109 (or 339090 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 122404631 is about 11063.6626394698. The cubic root of 122404631 is about 496.5152778443.

Adding to 122404631 its reverse (136404221), we get a palindrome (258808852).

The spelling of 122404631 in words is "one hundred twenty-two million, four hundred four thousand, six hundred thirty-one".