916242631 has 4 divisors (see below), whose sum is σ = 931263064. Its totient is φ = 901222200.

The previous prime is 916242623. The next prime is 916242653. The reversal of 916242631 is 136242619.

It is a happy number.

916242631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 916242631 - 2³ = 916242623 is a prime.

It is a super-2 number, since 2×916242631² = 1679001117723604322, which contains 22 as substring.

It is the 30270-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916242611) by changing a digit.

It is a nontrivial repunit in base 30269.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7510125 + ... + 7510246.

It is an arithmetic number, because the mean of its divisors is an integer number (232815766).

Almost surely, 2^916242631 is an apocalyptic number.

916242631 is a deficient number, since it is larger than the sum of its proper divisors (15020433).

916242631 is a wasteful number, since it uses less digits than its factorization.

916242631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020432.

The product of its digits is 15552, while the sum is 34.

The square root of 916242631 is about 30269.5000123887. The cubic root of 916242631 is about 971.2629706520.

The spelling of 916242631 in words is "nine hundred sixteen million, two hundred forty-two thousand, six hundred thirty-one".