64145232 has 30 divisors (see below), whose sum is σ = 179517962. Its totient is φ = 21381696.

The previous prime is 64145219. The next prime is 64145239. The reversal of 64145232 is 23254146.

64145232 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 only one way, i.e., 61402896 + 2742336 = 7836^2 + 1656^2 .

It is a super-2 number, since 2×64145232² = 8229221576667648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64145196 and 64145205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64145239) 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 5 ways as a sum of consecutive naturals, for example, 222583 + ... + 222870.

Almost surely, 2^64145232 is an apocalyptic number.

It is an amenable number.

64145232 is an abundant number, since it is smaller than the sum of its proper divisors (115372730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64145232 is a wasteful number, since it uses less digits than its factorization.

64145232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445467 (or 445458 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 64145232 is about 8009.0718563389. The cubic root of 64145232 is about 400.3023380883.

Adding to 64145232 its reverse (23254146), we get a palindrome (87399378).

The spelling of 64145232 in words is "sixty-four million, one hundred forty-five thousand, two hundred thirty-two".