64935137 has 2 divisors, whose sum is σ = 64935138. Its totient is φ = 64935136.

The previous prime is 64935131. The next prime is 64935139. The reversal of 64935137 is 73153946.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60777616 + 4157521 = 7796^2 + 2039^2 .

It is a cyclic number.

It is not a de Polignac number, because 64935137 - 2¹⁰ = 64934113 is a prime.

Together with 64935139, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3836945 and since 64935137 and 3836945 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64935137.

It is not a weakly prime, because it can be changed into another prime (64935131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32467568 + 32467569.

It is an arithmetic number, because the mean of its divisors is an integer number (32467569).

Almost surely, 2^64935137 is an apocalyptic number.

It is an amenable number.

64935137 is a deficient number, since it is larger than the sum of its proper divisors (1).

64935137 is an equidigital number, since it uses as much as digits as its factorization.

64935137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 64935137 is about 8058.2341117642. The cubic root of 64935137 is about 401.9387896374.

The spelling of 64935137 in words is "sixty-four million, nine hundred thirty-five thousand, one hundred thirty-seven".