1133831572 has 48 divisors (see below), whose sum is σ = 2102704128. Its totient is φ = 534159360.

The previous prime is 1133831561. The next prime is 1133831579. The reversal of 1133831572 is 2751383311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133831579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497418 + ... + 1498174.

It is an arithmetic number, because the mean of its divisors is an integer number (43806336).

Almost surely, 2^1133831572 is an apocalyptic number.

It is an amenable number.

1133831572 is a deficient number, since it is larger than the sum of its proper divisors (968872556).

1133831572 is a wasteful number, since it uses less digits than its factorization.

1133831572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 1133831572 is about 33672.4155949644. The cubic root of 1133831572 is about 1042.7563630247.

The spelling of 1133831572 in words is "one billion, one hundred thirty-three million, eight hundred thirty-one thousand, five hundred seventy-two".