654136264 has 8 divisors (see below), whose sum is σ = 1226505510. Its totient is φ = 327068128.

The previous prime is 654136193. The next prime is 654136279. The reversal of 654136264 is 462631456.

It can be written as a sum of positive squares in only one way, i.e., 653824900 + 311364 = 25570^2 + 558^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40883509 + ... + 40883524.

Almost surely, 2^654136264 is an apocalyptic number.

It is an amenable number.

654136264 is a deficient number, since it is larger than the sum of its proper divisors (572369246).

654136264 is a wasteful number, since it uses less digits than its factorization.

654136264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81767039 (or 81767035 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 654136264 is about 25576.0877383544. The cubic root of 654136264 is about 868.0726542001.

The spelling of 654136264 in words is "six hundred fifty-four million, one hundred thirty-six thousand, two hundred sixty-four".