42157301 has 2 divisors, whose sum is σ = 42157302. Its totient is φ = 42157300.

The previous prime is 42157289. The next prime is 42157327. The reversal of 42157301 is 10375124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35402500 + 6754801 = 5950^2 + 2599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42157301 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 (42157361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21078650 + 21078651.

It is an arithmetic number, because the mean of its divisors is an integer number (21078651).

Almost surely, 2^42157301 is an apocalyptic number.

It is an amenable number.

42157301 is a deficient number, since it is larger than the sum of its proper divisors (1).

42157301 is an equidigital number, since it uses as much as digits as its factorization.

42157301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 42157301 is about 6492.8653921054. The cubic root of 42157301 is about 348.0360781946.

The spelling of 42157301 in words is "forty-two million, one hundred fifty-seven thousand, three hundred one".