51139034 has 8 divisors (see below), whose sum is σ = 76883040. Its totient is φ = 25511356.

The previous prime is 51139021. The next prime is 51139037. The reversal of 51139034 is 43093115.

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

It is a junction number, because it is equal to n+sod(n) for n = 51138994 and 51139012.

It is not an unprimeable number, because it can be changed into a prime (51139037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27974 + ... + 29745.

It is an arithmetic number, because the mean of its divisors is an integer number (9610380).

Almost surely, 2^51139034 is an apocalyptic number.

51139034 is a deficient number, since it is larger than the sum of its proper divisors (25744006).

51139034 is a wasteful number, since it uses less digits than its factorization.

51139034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58164.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 51139034 is about 7151.1561303051. The cubic root of 51139034 is about 371.1796632007.

The spelling of 51139034 in words is "fifty-one million, one hundred thirty-nine thousand, thirty-four".