51140134 has 16 divisors (see below), whose sum is σ = 80898480. Its totient is φ = 24179040.

The previous prime is 51140129. The next prime is 51140147. The reversal of 51140134 is 43104115.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28504 + ... + 30244.

It is an arithmetic number, because the mean of its divisors is an integer number (5056155).

Almost surely, 2^51140134 is an apocalyptic number.

51140134 is a deficient number, since it is larger than the sum of its proper divisors (29758346).

51140134 is a wasteful number, since it uses less digits than its factorization.

51140134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51140134 is about 7151.2330405322. The cubic root of 51140134 is about 371.1823245383.

Adding to 51140134 its reverse (43104115), we get a palindrome (94244249).

It can be divided in two parts, 51 and 140134, that added together give a triangular number (140185 = T₅₂₉).

The spelling of 51140134 in words is "fifty-one million, one hundred forty thousand, one hundred thirty-four".