64654137 has 12 divisors (see below), whose sum is σ = 96610020. Its totient is φ = 41616288.

The previous prime is 64654103. The next prime is 64654159. The reversal of 64654137 is 73145646.

It is a happy number.

64654137 is a `hidden beast` number, since 646 + 5 + 4 + 1 + 3 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12467961 + 52186176 = 3531^2 + 7224^2 .

It is not a de Polignac number, because 64654137 - 2²⁰ = 63605561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64653137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123598 + ... + 124119.

It is an arithmetic number, because the mean of its divisors is an integer number (8050835).

Almost surely, 2^64654137 is an apocalyptic number.

It is an amenable number.

64654137 is a deficient number, since it is larger than the sum of its proper divisors (31955883).

64654137 is a wasteful number, since it uses less digits than its factorization.

64654137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247752 (or 247749 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 64654137 is about 8040.7796263795. The cubic root of 64654137 is about 401.3581686421.

The spelling of 64654137 in words is "sixty-four million, six hundred fifty-four thousand, one hundred thirty-seven".