1131357672 has 64 divisors (see below), whose sum is σ = 3279312000. Its totient is φ = 360721152.

The previous prime is 1131357653. The next prime is 1131357673. The reversal of 1131357672 is 2767531311.

1131357672 is a `hidden beast` number, since 1 + 1 + 3 + 13 + 576 + 72 = 666.

1131357672 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1131357673) 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, 108897 + ... + 118832.

It is an arithmetic number, because the mean of its divisors is an integer number (51239250).

Almost surely, 2^1131357672 is an apocalyptic number.

1131357672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131357672 is an abundant number, since it is smaller than the sum of its proper divisors (2147954328).

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

1131357672 is a wasteful number, since it uses less digits than its factorization.

1131357672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227767 (or 227757 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1131357672 is about 33635.6607189453. The cubic root of 1131357672 is about 1041.9974162523.

Adding to 1131357672 its reverse (2767531311), we get a palindrome (3898888983).

The spelling of 1131357672 in words is "one billion, one hundred thirty-one million, three hundred fifty-seven thousand, six hundred seventy-two".