5640157 has 2 divisors, whose sum is σ = 5640158. Its totient is φ = 5640156.

The previous prime is 5640149. The next prime is 5640163. The reversal of 5640157 is 7510465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4372281 + 1267876 = 2091^2 + 1126^2 .

It is a cyclic number.

It is not a de Polignac number, because 5640157 - 2³ = 5640149 is a prime.

It is a super-2 number, since 2×5640157² = 63622741969298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5640457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820078 + 2820079.

It is an arithmetic number, because the mean of its divisors is an integer number (2820079).

Almost surely, 2^5640157 is an apocalyptic number.

It is an amenable number.

5640157 is a deficient number, since it is larger than the sum of its proper divisors (1).

5640157 is an equidigital number, since it uses as much as digits as its factorization.

5640157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 5640157 is about 2374.9014716405. The cubic root of 5640157 is about 178.0042607237.

The spelling of 5640157 in words is "five million, six hundred forty thousand, one hundred fifty-seven".