1156131 has 12 divisors (see below), whose sum is σ = 1758120. Its totient is φ = 730080.

The previous prime is 1156121. The next prime is 1156151. The reversal of 1156131 is 1316511.

It is not a de Polignac number, because 1156131 - 2⁹ = 1155619 is a prime.

It is a super-2 number, since 2×1156131² = 2673277778322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156121) 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, 3210 + ... + 3551.

It is an arithmetic number, because the mean of its divisors is an integer number (146510).

2^1156131 is an apocalyptic number.

1156131 is a deficient number, since it is larger than the sum of its proper divisors (601989).

1156131 is a wasteful number, since it uses less digits than its factorization.

1156131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786 (or 6783 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 1156131 is about 1075.2353230805. The cubic root of 1156131 is about 104.9548104863.

The spelling of 1156131 in words is "one million, one hundred fifty-six thousand, one hundred thirty-one".