654798157 has 16 divisors (see below), whose sum is σ = 714649600. Its totient is φ = 596356992.

The previous prime is 654798103. The next prime is 654798181. The reversal of 654798157 is 751897456.

It is a cyclic number.

It is not a de Polignac number, because 654798157 - 2⁷ = 654798029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654798257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327553 + ... + 329545.

It is an arithmetic number, because the mean of its divisors is an integer number (44665600).

Almost surely, 2^654798157 is an apocalyptic number.

It is an amenable number.

654798157 is a deficient number, since it is larger than the sum of its proper divisors (59851443).

654798157 is a wasteful number, since it uses less digits than its factorization.

654798157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

The product of its digits is 2116800, while the sum is 52.

The square root of 654798157 is about 25589.0241509910. The cubic root of 654798157 is about 868.3653442500.

The spelling of 654798157 in words is "six hundred fifty-four million, seven hundred ninety-eight thousand, one hundred fifty-seven".