63457131 has 16 divisors (see below), whose sum is σ = 89308800. Its totient is φ = 39967488.

The previous prime is 63457091. The next prime is 63457153. The reversal of 63457131 is 13175436.

It is not a de Polignac number, because 63457131 - 2¹¹ = 63455083 is a prime.

It is a super-2 number, since 2×63457131² = 8053614949502322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63457171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22555 + ... + 25211.

It is an arithmetic number, because the mean of its divisors is an integer number (5581800).

Almost surely, 2^63457131 is an apocalyptic number.

63457131 is a deficient number, since it is larger than the sum of its proper divisors (25851669).

63457131 is a wasteful number, since it uses less digits than its factorization.

63457131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098.

The product of its digits is 7560, while the sum is 30.

The square root of 63457131 is about 7965.9984308309. The cubic root of 63457131 is about 398.8658099888.

The spelling of 63457131 in words is "sixty-three million, four hundred fifty-seven thousand, one hundred thirty-one".