64275137 has 2 divisors, whose sum is σ = 64275138. Its totient is φ = 64275136.

The previous prime is 64275109. The next prime is 64275139. The reversal of 64275137 is 73157246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50069776 + 14205361 = 7076^2 + 3769^2 .

It is a cyclic number.

It is not a de Polignac number, because 64275137 - 2¹⁰ = 64274113 is a prime.

Together with 64275139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64275097 and 64275106.

It is not a weakly prime, because it can be changed into another prime (64275139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32137568 + 32137569.

It is an arithmetic number, because the mean of its divisors is an integer number (32137569).

Almost surely, 2^64275137 is an apocalyptic number.

It is an amenable number.

64275137 is a deficient number, since it is larger than the sum of its proper divisors (1).

64275137 is an equidigital number, since it uses as much as digits as its factorization.

64275137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 64275137 is about 8017.1776205844. The cubic root of 64275137 is about 400.5723826379.

The spelling of 64275137 in words is "sixty-four million, two hundred seventy-five thousand, one hundred thirty-seven".