51512134 has 16 divisors (see below), whose sum is σ = 81106272. Its totient is φ = 24490048.

The previous prime is 51512129. The next prime is 51512147. The reversal of 51512134 is 43121515.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4722 + ... + 11194.

It is an arithmetic number, because the mean of its divisors is an integer number (5069142).

Almost surely, 2^51512134 is an apocalyptic number.

51512134 is a deficient number, since it is larger than the sum of its proper divisors (29594138).

51512134 is a wasteful number, since it uses less digits than its factorization.

51512134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671.

The product of its digits is 600, while the sum is 22.

The square root of 51512134 is about 7177.1954132516. The cubic root of 51512134 is about 372.0801605879.

Adding to 51512134 its reverse (43121515), we get a palindrome (94633649).

The spelling of 51512134 in words is "fifty-one million, five hundred twelve thousand, one hundred thirty-four".