64601144 has 16 divisors (see below), whose sum is σ = 122661600. Its totient is φ = 31891392.

The previous prime is 64601137. The next prime is 64601167. The reversal of 64601144 is 44110646.

64601144 = 865² + 866² + ... + 943².

It is a super-2 number, since 2×64601144² = 8346615612217472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50477 + ... + 51740.

It is an arithmetic number, because the mean of its divisors is an integer number (7666350).

Almost surely, 2^64601144 is an apocalyptic number.

It is an amenable number.

64601144 is a deficient number, since it is larger than the sum of its proper divisors (58060456).

64601144 is a wasteful number, since it uses less digits than its factorization.

64601144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102302 (or 102298 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 64601144 is about 8037.4836858310. The cubic root of 64601144 is about 401.2484825077.

The spelling of 64601144 in words is "sixty-four million, six hundred one thousand, one hundred forty-four".