51214137 has 16 divisors (see below), whose sum is σ = 73687488. Its totient is φ = 31452480.

The previous prime is 51214129. The next prime is 51214181. The reversal of 51214137 is 73141215.

It is not a de Polignac number, because 51214137 - 2³ = 51214129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51214127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24462 + ... + 26472.

It is an arithmetic number, because the mean of its divisors is an integer number (4605468).

Almost surely, 2^51214137 is an apocalyptic number.

It is an amenable number.

51214137 is a deficient number, since it is larger than the sum of its proper divisors (22473351).

51214137 is a wasteful number, since it uses less digits than its factorization.

51214137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its digits is 840, while the sum is 24.

The square root of 51214137 is about 7156.4053127251. The cubic root of 51214137 is about 371.3612796593.

The spelling of 51214137 in words is "fifty-one million, two hundred fourteen thousand, one hundred thirty-seven".