654645136 has 20 divisors (see below), whose sum is σ = 1323522432. Its totient is φ = 313090976.

The previous prime is 654645127. The next prime is 654645137. The reversal of 654645136 is 631546456.

It is not an unprimeable number, because it can be changed into a prime (654645137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889096 + ... + 889831.

Almost surely, 2^654645136 is an apocalyptic number.

It is an amenable number.

654645136 is an abundant number, since it is smaller than the sum of its proper divisors (668877296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654645136 is a wasteful number, since it uses less digits than its factorization.

654645136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778958 (or 1778952 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 654645136 is about 25586.0340029478. The cubic root of 654645136 is about 868.2976956756.

The spelling of 654645136 in words is "six hundred fifty-four million, six hundred forty-five thousand, one hundred thirty-six".