64145524 has 12 divisors (see below), whose sum is σ = 112722148. Its totient is φ = 31939200.

The previous prime is 64145513. The next prime is 64145527. The reversal of 64145524 is 42554146.

It is a happy number.

64145524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52707600 + 11437924 = 7260^2 + 3382^2 .

It is a super-2 number, since 2×64145524² = 8229296498469152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64145527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32307 + ... + 34234.

Almost surely, 2^64145524 is an apocalyptic number.

It is an amenable number.

64145524 is a deficient number, since it is larger than the sum of its proper divisors (48576624).

64145524 is a wasteful number, since it uses less digits than its factorization.

64145524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66786 (or 66784 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 64145524 is about 8009.0900856464. The cubic root of 64145524 is about 400.3029455021.

The spelling of 64145524 in words is "sixty-four million, one hundred forty-five thousand, five hundred twenty-four".