51142367 has 2 divisors, whose sum is σ = 51142368. Its totient is φ = 51142366.

The previous prime is 51142361. The next prime is 51142387. The reversal of 51142367 is 76324115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51142367 - 2⁶ = 51142303 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51142361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25571183 + 25571184.

It is an arithmetic number, because the mean of its divisors is an integer number (25571184).

Almost surely, 2^51142367 is an apocalyptic number.

51142367 is a deficient number, since it is larger than the sum of its proper divisors (1).

51142367 is an equidigital number, since it uses as much as digits as its factorization.

51142367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 51142367 is about 7151.3891657495. The cubic root of 51142367 is about 371.1877269363.

The spelling of 51142367 in words is "fifty-one million, one hundred forty-two thousand, three hundred sixty-seven".