1357131 has 4 divisors (see below), whose sum is σ = 1809512. Its totient is φ = 904752.

The previous prime is 1357129. The next prime is 1357163. The reversal of 1357131 is 1317531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1357131 - 2¹ = 1357129 is a prime.

It is a super-2 number, since 2×1357131² = 3683609102322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1357098 and 1357107.

It is not an unprimeable number, because it can be changed into a prime (1355131) 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 in 3 ways as a sum of consecutive naturals, for example, 226186 + ... + 226191.

It is an arithmetic number, because the mean of its divisors is an integer number (452378).

2^1357131 is an apocalyptic number.

1357131 is a deficient number, since it is larger than the sum of its proper divisors (452381).

1357131 is an equidigital number, since it uses as much as digits as its factorization.

1357131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452380.

The product of its digits is 315, while the sum is 21.

The square root of 1357131 is about 1164.9596559538. The cubic root of 1357131 is about 110.7152020538.

The spelling of 1357131 in words is "one million, three hundred fifty-seven thousand, one hundred thirty-one".