51440134 has 8 divisors (see below), whose sum is σ = 77333400. Its totient is φ = 25662336.

The previous prime is 51440111. The next prime is 51440149. The reversal of 51440134 is 43104415.

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

It is a congruent 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, 27744 + ... + 29539.

It is an arithmetic number, because the mean of its divisors is an integer number (9666675).

Almost surely, 2^51440134 is an apocalyptic number.

51440134 is a deficient number, since it is larger than the sum of its proper divisors (25893266).

51440134 is a wasteful number, since it uses less digits than its factorization.

51440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57734.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 51440134 is about 7172.1777724761. The cubic root of 51440134 is about 371.9067240219.

Adding to 51440134 its reverse (43104415), we get a palindrome (94544549).

The spelling of 51440134 in words is "fifty-one million, four hundred forty thousand, one hundred thirty-four".