64233137 has 2 divisors, whose sum is σ = 64233138. Its totient is φ = 64233136.

The previous prime is 64233133. The next prime is 64233149. The reversal of 64233137 is 73133246.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37442161 + 26790976 = 6119^2 + 5176^2 .

It is a cyclic number.

It is not a de Polignac number, because 64233137 - 2² = 64233133 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64233131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32116568 + 32116569.

It is an arithmetic number, because the mean of its divisors is an integer number (32116569).

Almost surely, 2^64233137 is an apocalyptic number.

It is an amenable number.

64233137 is a deficient number, since it is larger than the sum of its proper divisors (1).

64233137 is an equidigital number, since it uses as much as digits as its factorization.

64233137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

The square root of 64233137 is about 8014.5578168730. The cubic root of 64233137 is about 400.4851135077.

The spelling of 64233137 in words is "sixty-four million, two hundred thirty-three thousand, one hundred thirty-seven".