64131486 has 8 divisors (see below), whose sum is σ = 128262984. Its totient is φ = 21377160.

The previous prime is 64131469. The next prime is 64131493. The reversal of 64131486 is 68413146.

It is a sphenic number, since it is the product of 3 distinct primes.

64131486 is an admirable number.

It is a super-2 number, since 2×64131486² = 8225694993136392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5344285 + ... + 5344296.

It is an arithmetic number, because the mean of its divisors is an integer number (16032873).

Almost surely, 2^64131486 is an apocalyptic number.

64131486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64131486 is a wasteful number, since it uses less digits than its factorization.

64131486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688586.

The product of its digits is 13824, while the sum is 33.

The square root of 64131486 is about 8008.2136584884. The cubic root of 64131486 is about 400.2737417875.

The spelling of 64131486 in words is "sixty-four million, one hundred thirty-one thousand, four hundred eighty-six".