51163146 has 12 divisors (see below), whose sum is σ = 110853522. Its totient is φ = 17054376.

The previous prime is 51163139. The next prime is 51163169. The reversal of 51163146 is 64136115.

51163146 is a `hidden beast` number, since 511 + 6 + 3 + 146 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45037521 + 6125625 = 6711^2 + 2475^2 .

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, 1421181 + ... + 1421216.

Almost surely, 2^51163146 is an apocalyptic number.

51163146 is an abundant number, since it is smaller than the sum of its proper divisors (59690376).

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

51163146 is a wasteful number, since it uses less digits than its factorization.

51163146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842405 (or 2842402 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 51163146 is about 7152.8418128741. The cubic root of 51163146 is about 371.2379909730.

The spelling of 51163146 in words is "fifty-one million, one hundred sixty-three thousand, one hundred forty-six".