42901597 has 2 divisors, whose sum is σ = 42901598. Its totient is φ = 42901596.

The previous prime is 42901571. The next prime is 42901609. The reversal of 42901597 is 79510924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21473956 + 21427641 = 4634^2 + 4629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42901597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42901567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21450798 + 21450799.

It is an arithmetic number, because the mean of its divisors is an integer number (21450799).

Almost surely, 2^42901597 is an apocalyptic number.

It is an amenable number.

42901597 is a deficient number, since it is larger than the sum of its proper divisors (1).

42901597 is an equidigital number, since it uses as much as digits as its factorization.

42901597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 42901597 is about 6549.9310683396. The cubic root of 42901597 is about 350.0723578291.

The spelling of 42901597 in words is "forty-two million, nine hundred one thousand, five hundred ninety-seven".