51331146 has 8 divisors (see below), whose sum is σ = 102662304. Its totient is φ = 17110380.

The previous prime is 51331117. The next prime is 51331151. The reversal of 51331146 is 64113315.

It is a sphenic number, since it is the product of 3 distinct primes.

51331146 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4277590 + ... + 4277601.

It is an arithmetic number, because the mean of its divisors is an integer number (12832788).

Almost surely, 2^51331146 is an apocalyptic number.

51331146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51331146 is a wasteful number, since it uses less digits than its factorization.

51331146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8555196.

The product of its digits is 1080, while the sum is 24.

The square root of 51331146 is about 7164.5757725074. The cubic root of 51331146 is about 371.6438810683.

The spelling of 51331146 in words is "fifty-one million, three hundred thirty-one thousand, one hundred forty-six".