51137143 has 2 divisors, whose sum is σ = 51137144. Its totient is φ = 51137142.

The previous prime is 51137117. The next prime is 51137153. The reversal of 51137143 is 34173115.

51137143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51137143 - 2²⁵ = 17582711 is a prime.

It is equal to p_3065191 and since 51137143 and 3065191 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51137153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25568571 + 25568572.

It is an arithmetic number, because the mean of its divisors is an integer number (25568572).

Almost surely, 2^51137143 is an apocalyptic number.

51137143 is a deficient number, since it is larger than the sum of its proper divisors (1).

51137143 is an equidigital number, since it uses as much as digits as its factorization.

51137143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 25.

The square root of 51137143 is about 7151.0239126995. The cubic root of 51137143 is about 371.1750880302.

The spelling of 51137143 in words is "fifty-one million, one hundred thirty-seven thousand, one hundred forty-three".