64361537 has 16 divisors (see below), whose sum is σ = 67925760. Its totient is φ = 60922368.

The previous prime is 64361509. The next prime is 64361551. The reversal of 64361537 is 73516346.

It is a cyclic number.

It is not a de Polignac number, because 64361537 - 2¹⁸ = 64099393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64361497 and 64361506.

It is not an unprimeable number, because it can be changed into a prime (64360537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283418 + ... + 283644.

It is an arithmetic number, because the mean of its divisors is an integer number (4245360).

Almost surely, 2^64361537 is an apocalyptic number.

It is an amenable number.

64361537 is a deficient number, since it is larger than the sum of its proper divisors (3564223).

64361537 is a wasteful number, since it uses less digits than its factorization.

64361537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its digits is 45360, while the sum is 35.

The square root of 64361537 is about 8022.5642409394. The cubic root of 64361537 is about 400.7517882343.

The spelling of 64361537 in words is "sixty-four million, three hundred sixty-one thousand, five hundred thirty-seven".