1131572970 has 64 divisors (see below), whose sum is σ = 3291857280. Its totient is φ = 274320000.

The previous prime is 1131572963. The next prime is 1131573013. The reversal of 1131572970 is 792751311.

1131572970 is a `hidden beast` number, since 1 + 13 + 1 + 572 + 9 + 70 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187531 + ... + 193470.

It is an arithmetic number, because the mean of its divisors is an integer number (51435270).

Almost surely, 2^1131572970 is an apocalyptic number.

1131572970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131572970 is an abundant number, since it is smaller than the sum of its proper divisors (2160284310).

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

1131572970 is a wasteful number, since it uses less digits than its factorization.

1131572970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381028 (or 381022 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 1131572970 is about 33638.8610092554. The cubic root of 1131572970 is about 1042.0635096243.

The spelling of 1131572970 in words is "one billion, one hundred thirty-one million, five hundred seventy-two thousand, nine hundred seventy".