122604631 has 4 divisors (see below), whose sum is σ = 122920200. Its totient is φ = 122289064.

The previous prime is 122604611. The next prime is 122604649. The reversal of 122604631 is 136406221.

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 122604631 - 2¹¹ = 122602583 is a prime.

It is a super-2 number, since 2×122604631² = 30063791085292322, 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 = 122604596 and 122604605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122604611) 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, 157201 + ... + 157978.

It is an arithmetic number, because the mean of its divisors is an integer number (30730050).

Almost surely, 2^122604631 is an apocalyptic number.

122604631 is a deficient number, since it is larger than the sum of its proper divisors (315569).

122604631 is an equidigital number, since it uses as much as digits as its factorization.

122604631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315568.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 122604631 is about 11072.6975484748. The cubic root of 122604631 is about 496.7855536207.

The spelling of 122604631 in words is "one hundred twenty-two million, six hundred four thousand, six hundred thirty-one".