42357751 has 2 divisors, whose sum is σ = 42357752. Its totient is φ = 42357750.

The previous prime is 42357737. The next prime is 42357773. The reversal of 42357751 is 15775324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42357751 - 2⁹ = 42357239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42357701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21178875 + 21178876.

It is an arithmetic number, because the mean of its divisors is an integer number (21178876).

Almost surely, 2^42357751 is an apocalyptic number.

42357751 is a deficient number, since it is larger than the sum of its proper divisors (1).

42357751 is an equidigital number, since it uses as much as digits as its factorization.

42357751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 34.

The square root of 42357751 is about 6508.2832605842. The cubic root of 42357751 is about 348.5868214831.

The spelling of 42357751 in words is "forty-two million, three hundred fifty-seven thousand, seven hundred fifty-one".