64535161 has 2 divisors, whose sum is σ = 64535162. Its totient is φ = 64535160.

The previous prime is 64535113. The next prime is 64535173. The reversal of 64535161 is 16153546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 1428025 = 7944^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 64535161 - 2²³ = 56146553 is a prime.

It is not a weakly prime, because it can be changed into another prime (64535101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32267580 + 32267581.

It is an arithmetic number, because the mean of its divisors is an integer number (32267581).

Almost surely, 2^64535161 is an apocalyptic number.

It is an amenable number.

64535161 is a deficient number, since it is larger than the sum of its proper divisors (1).

64535161 is an equidigital number, since it uses as much as digits as its factorization.

64535161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 64535161 is about 8033.3779321030. The cubic root of 64535161 is about 401.1118254968. Note that the first 3 decimals are identical.

The spelling of 64535161 in words is "sixty-four million, five hundred thirty-five thousand, one hundred sixty-one".