64157732 has 12 divisors (see below), whose sum is σ = 112356720. Its totient is φ = 32055816.

The previous prime is 64157713. The next prime is 64157747. The reversal of 64157732 is 23775146.

64157732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64157692 and 64157701.

It is an unprimeable number.

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, 1523 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (9363060).

Almost surely, 2^64157732 is an apocalyptic number.

It is an amenable number.

64157732 is a deficient number, since it is larger than the sum of its proper divisors (48198988).

64157732 is a wasteful number, since it uses less digits than its factorization.

64157732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11530 (or 11528 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 64157732 is about 8009.8521834051. The cubic root of 64157732 is about 400.3283387438.

The spelling of 64157732 in words is "sixty-four million, one hundred fifty-seven thousand, seven hundred thirty-two".