1131983637 has 8 divisors (see below), whose sum is σ = 1546124160. Its totient is φ = 736249440.

The previous prime is 1131983627. The next prime is 1131983647. The reversal of 1131983637 is 7363891311.

It is an interprime number because it is at equal distance from previous prime (1131983627) and next prime (1131983647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131983637 - 2⁷ = 1131983509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131983627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4601437 + ... + 4601682.

It is an arithmetic number, because the mean of its divisors is an integer number (193265520).

Almost surely, 2^1131983637 is an apocalyptic number.

It is an amenable number.

1131983637 is a deficient number, since it is larger than the sum of its proper divisors (414140523).

1131983637 is an equidigital number, since it uses as much as digits as its factorization.

1131983637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9203163.

The product of its digits is 81648, while the sum is 42.

The square root of 1131983637 is about 33644.9645117958. The cubic root of 1131983637 is about 1042.1895552110.

The spelling of 1131983637 in words is "one billion, one hundred thirty-one million, nine hundred eighty-three thousand, six hundred thirty-seven".