1131369136 has 40 divisors (see below), whose sum is σ = 2311124400. Its totient is φ = 535046400.

The previous prime is 1131369133. The next prime is 1131369179. The reversal of 1131369136 is 6319631311.

It is a super-2 number, since 2×1131369136² = 2559992243786772992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131369133) 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, 210450 + ... + 215758.

It is an arithmetic number, because the mean of its divisors is an integer number (57778110).

Almost surely, 2^1131369136 is an apocalyptic number.

1131369136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1131369136 is an abundant number, since it is smaller than the sum of its proper divisors (1179755264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131369136 is a wasteful number, since it uses less digits than its factorization.

1131369136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037 (or 6031 counting only the distinct ones).

The product of its digits is 8748, while the sum is 34.

The square root of 1131369136 is about 33635.8311328857. The cubic root of 1131369136 is about 1042.0009357458. Note that the first 3 decimals are identical.

The spelling of 1131369136 in words is "one billion, one hundred thirty-one million, three hundred sixty-nine thousand, one hundred thirty-six".