654745157 has 12 divisors (see below), whose sum is σ = 762014988. Its totient is φ = 560208000.

The previous prime is 654745153. The next prime is 654745159. The reversal of 654745157 is 751547456.

It can be written as a sum of positive squares in 2 ways, for example, as 516471076 + 138274081 = 22726^2 + 11759^2 .

It is not a de Polignac number, because 654745157 - 2² = 654745153 is a prime.

It is a super-2 number, since 2×654745157² = 857382441229909298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654745153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157094 + ... + 161207.

It is an arithmetic number, because the mean of its divisors is an integer number (63501249).

Almost surely, 2^654745157 is an apocalyptic number.

It is an amenable number.

654745157 is a deficient number, since it is larger than the sum of its proper divisors (107269831).

654745157 is a wasteful number, since it uses less digits than its factorization.

654745157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318340 (or 318329 counting only the distinct ones).

The product of its digits is 588000, while the sum is 44.

The square root of 654745157 is about 25587.9885297770. The cubic root of 654745157 is about 868.3419148392.

The spelling of 654745157 in words is "six hundred fifty-four million, seven hundred forty-five thousand, one hundred fifty-seven".