1131252732 has 18 divisors (see below), whose sum is σ = 2859555608. Its totient is φ = 377084232.

The previous prime is 1131252719. The next prime is 1131252767. The reversal of 1131252732 is 2372521311.

1131252732 is a `hidden beast` number, since 1 + 131 + 2 + 527 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 1131252696 and 1131252705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15711808 + ... + 15711879.

Almost surely, 2^1131252732 is an apocalyptic number.

1131252732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131252732 is an abundant number, since it is smaller than the sum of its proper divisors (1728302876).

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

1131252732 is a wasteful number, since it uses less digits than its factorization.

1131252732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31423697 (or 31423692 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1131252732 is about 33634.1007312519. The cubic root of 1131252732 is about 1041.9651981505.

The spelling of 1131252732 in words is "one billion, one hundred thirty-one million, two hundred fifty-two thousand, seven hundred thirty-two".