42631751 has 2 divisors, whose sum is σ = 42631752. Its totient is φ = 42631750.

The previous prime is 42631739. The next prime is 42631817. The reversal of 42631751 is 15713624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42631751 - 2¹⁰ = 42630727 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 (42631151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315875 + 21315876.

It is an arithmetic number, because the mean of its divisors is an integer number (21315876).

Almost surely, 2^42631751 is an apocalyptic number.

42631751 is a deficient number, since it is larger than the sum of its proper divisors (1).

42631751 is an equidigital number, since it uses as much as digits as its factorization.

42631751 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 42631751 is about 6529.2994264316. The cubic root of 42631751 is about 349.3368422436.

The spelling of 42631751 in words is "forty-two million, six hundred thirty-one thousand, seven hundred fifty-one".