5657131 has 2 divisors, whose sum is σ = 5657132. Its totient is φ = 5657130.

The previous prime is 5657129. The next prime is 5657143. The reversal of 5657131 is 1317565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5657131 - 2¹ = 5657129 is a prime.

It is a super-2 number, since 2×5657131² = 64006262302322, which contains 22 as substring.

Together with 5657129, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5657131.

It is not a weakly prime, because it can be changed into another prime (5657731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828565 + 2828566.

It is an arithmetic number, because the mean of its divisors is an integer number (2828566).

Almost surely, 2^5657131 is an apocalyptic number.

5657131 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657131 is an equidigital number, since it uses as much as digits as its factorization.

5657131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 28.

The square root of 5657131 is about 2378.4724089213. The cubic root of 5657131 is about 178.1826492789.

The spelling of 5657131 in words is "five million, six hundred fifty-seven thousand, one hundred thirty-one".