64461535 has 16 divisors (see below), whose sum is σ = 82899936. Its totient is φ = 47945728.

The previous prime is 64461503. The next prime is 64461541. The reversal of 64461535 is 53516446.

It is a cyclic number.

It is not a de Polignac number, because 64461535 - 2⁵ = 64461503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64461535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487 + ... + 11623.

It is an arithmetic number, because the mean of its divisors is an integer number (5181246).

Almost surely, 2^64461535 is an apocalyptic number.

64461535 is a deficient number, since it is larger than the sum of its proper divisors (18438401).

64461535 is a wasteful number, since it uses less digits than its factorization.

64461535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242.

The product of its digits is 43200, while the sum is 34.

The square root of 64461535 is about 8028.7941186706. The cubic root of 64461535 is about 400.9592291100.

The spelling of 64461535 in words is "sixty-four million, four hundred sixty-one thousand, five hundred thirty-five".