64137073 has 32 divisors (see below), whose sum is σ = 91203840. Its totient is φ = 43407360.

The previous prime is 64137013. The next prime is 64137083. The reversal of 64137073 is 37073146.

It is a cyclic number.

It is not a de Polignac number, because 64137073 - 2⁹ = 64136561 is a prime.

It is a super-2 number, since 2×64137073² = 8227128266014658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64137013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15133 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (2850120).

Almost surely, 2^64137073 is an apocalyptic number.

It is an amenable number.

64137073 is a deficient number, since it is larger than the sum of its proper divisors (27066767).

64137073 is a wasteful number, since it uses less digits than its factorization.

64137073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 64137073 is about 8008.5624802458. The cubic root of 64137073 is about 400.2853651185.

The spelling of 64137073 in words is "sixty-four million, one hundred thirty-seven thousand, seventy-three".