64131654 has 8 divisors (see below), whose sum is σ = 128263320. Its totient is φ = 21377216.

The previous prime is 64131629. The next prime is 64131671. The reversal of 64131654 is 45613146.

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

64131654 is an admirable number.

It is a super-2 number, since 2×64131654² = 8225738089551432, which contains 22 as substring.

It is a Curzon number.

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, 5344299 + ... + 5344310.

It is an arithmetic number, because the mean of its divisors is an integer number (16032915).

Almost surely, 2^64131654 is an apocalyptic number.

64131654 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.

64131654 is a wasteful number, since it uses less digits than its factorization.

64131654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688614.

The product of its digits is 8640, while the sum is 30.

The square root of 64131654 is about 8008.2241477122. The cubic root of 64131654 is about 400.2740913087.

The spelling of 64131654 in words is "sixty-four million, one hundred thirty-one thousand, six hundred fifty-four".