64133465 has 16 divisors (see below), whose sum is σ = 84779136. Its totient is φ = 46185600.

The previous prime is 64133449. The next prime is 64133467. The reversal of 64133465 is 56433146.

It is not a de Polignac number, because 64133465 - 2⁴ = 64133449 is a prime.

It is a super-2 number, since 2×64133465² = 8226202665812450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64133467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (5298696).

Almost surely, 2^64133465 is an apocalyptic number.

It is an amenable number.

64133465 is a deficient number, since it is larger than the sum of its proper divisors (20645671).

64133465 is a wasteful number, since it uses less digits than its factorization.

64133465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440.

The product of its digits is 25920, while the sum is 32.

The square root of 64133465 is about 8008.3372181746. The cubic root of 64133465 is about 400.2778590245.

The spelling of 64133465 in words is "sixty-four million, one hundred thirty-three thousand, four hundred sixty-five".