64153238 has 4 divisors (see below), whose sum is σ = 96229860. Its totient is φ = 32076618.

The previous prime is 64153231. The next prime is 64153283. The reversal of 64153238 is 83235146.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64153231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16038308 + ... + 16038311.

It is an arithmetic number, because the mean of its divisors is an integer number (24057465).

Almost surely, 2^64153238 is an apocalyptic number.

64153238 is a deficient number, since it is larger than the sum of its proper divisors (32076622).

64153238 is a wasteful number, since it uses less digits than its factorization.

64153238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32076621.

The product of its digits is 17280, while the sum is 32.

The square root of 64153238 is about 8009.5716489710. The cubic root of 64153238 is about 400.3189913770.

The spelling of 64153238 in words is "sixty-four million, one hundred fifty-three thousand, two hundred thirty-eight".