64099136 has 14 divisors (see below), whose sum is σ = 127196850. Its totient is φ = 32049536.

The previous prime is 64099121. The next prime is 64099171. The reversal of 64099136 is 63199046.

It can be written as a sum of positive squares in only one way, i.e., 54760000 + 9339136 = 7400^2 + 3056^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64099136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500711 + ... + 500838.

Almost surely, 2^64099136 is an apocalyptic number.

It is an amenable number.

64099136 is a deficient number, since it is larger than the sum of its proper divisors (63097714).

64099136 is a wasteful number, since it uses less digits than its factorization.

64099136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001561 (or 1001551 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 64099136 is about 8006.1936024555. The cubic root of 64099136 is about 400.2064267850.

The spelling of 64099136 in words is "sixty-four million, ninety-nine thousand, one hundred thirty-six".