634613031 has 24 divisors (see below), whose sum is σ = 994972160. Its totient is φ = 387446976.

The previous prime is 634612991. The next prime is 634613069. The reversal of 634613031 is 130316436.

It is not a de Polignac number, because 634613031 - 2⁹ = 634612519 is a prime.

It is a super-2 number, since 2×634613031² = 805467398230013922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634612986 and 634613004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634613131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6496 + ... + 36213.

Almost surely, 2^634613031 is an apocalyptic number.

634613031 is a deficient number, since it is larger than the sum of its proper divisors (360359129).

634613031 is a wasteful number, since it uses less digits than its factorization.

634613031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42855 (or 42852 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 634613031 is about 25191.5269684075. The cubic root of 634613031 is about 859.3491700199.

Adding to 634613031 its reverse (130316436), we get a palindrome (764929467).

The spelling of 634613031 in words is "six hundred thirty-four million, six hundred thirteen thousand, thirty-one".