634062531 has 4 divisors (see below), whose sum is σ = 845416712. Its totient is φ = 422708352.

The previous prime is 634062521. The next prime is 634062553. The reversal of 634062531 is 135260436.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 634062531 - 2⁹ = 634062019 is a prime.

It is a super-2 number, since 2×634062531² = 804070586436251922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634062521) 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, 105677086 + ... + 105677091.

It is an arithmetic number, because the mean of its divisors is an integer number (211354178).

Almost surely, 2^634062531 is an apocalyptic number.

634062531 is a deficient number, since it is larger than the sum of its proper divisors (211354181).

634062531 is a wasteful number, since it uses less digits than its factorization.

634062531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211354180.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 634062531 is about 25180.5983050443. The cubic root of 634062531 is about 859.1006150996.

The spelling of 634062531 in words is "six hundred thirty-four million, sixty-two thousand, five hundred thirty-one".