51714139 has 2 divisors, whose sum is σ = 51714140. Its totient is φ = 51714138.

The previous prime is 51714133. The next prime is 51714191. The reversal of 51714139 is 93141715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51714139 - 2⁷ = 51714011 is a prime.

It is a super-2 number, since 2×51714139² = 5348704345022642, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51714139.

It is not a weakly prime, because it can be changed into another prime (51714133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25857069 + 25857070.

It is an arithmetic number, because the mean of its divisors is an integer number (25857070).

Almost surely, 2^51714139 is an apocalyptic number.

51714139 is a deficient number, since it is larger than the sum of its proper divisors (1).

51714139 is an equidigital number, since it uses as much as digits as its factorization.

51714139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 31.

The square root of 51714139 is about 7191.2543412120. The cubic root of 51714139 is about 372.5658973848.

The spelling of 51714139 in words is "fifty-one million, seven hundred fourteen thousand, one hundred thirty-nine".