51144186 has 16 divisors (see below), whose sum is σ = 102369024. Its totient is φ = 17034624.

The previous prime is 51144133. The next prime is 51144187. The reversal of 51144186 is 68144115.

It is not an unprimeable number, because it can be changed into a prime (51144187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7671 + ... + 12693.

It is an arithmetic number, because the mean of its divisors is an integer number (6398064).

Almost surely, 2^51144186 is an apocalyptic number.

51144186 is an abundant number, since it is smaller than the sum of its proper divisors (51224838).

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

51144186 is a wasteful number, since it uses less digits than its factorization.

51144186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725.

The product of its digits is 3840, while the sum is 30.

The square root of 51144186 is about 7151.5163427066. The cubic root of 51144186 is about 371.1921276091.

The spelling of 51144186 in words is "fifty-one million, one hundred forty-four thousand, one hundred eighty-six".