1146131856 has 60 divisors (see below), whose sum is σ = 3326387792. Its totient is φ = 382042656.

The previous prime is 1146131843. The next prime is 1146131873. The reversal of 1146131856 is 6581316411.

It is a happy number.

1146131856 is a `hidden beast` number, since 11 + 461 + 3 + 185 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1146131856.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143506 + ... + 151281.

Almost surely, 2^1146131856 is an apocalyptic number.

1146131856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1146131856 is an abundant number, since it is smaller than the sum of its proper divisors (2180255936).

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

1146131856 is an equidigital number, since it uses as much as digits as its factorization.

1146131856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294810 (or 294792 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1146131856 is about 33854.5692041709. The cubic root of 1146131856 is about 1046.5135629211.

The spelling of 1146131856 in words is "one billion, one hundred forty-six million, one hundred thirty-one thousand, eight hundred fifty-six".