42571097 has 2 divisors, whose sum is σ = 42571098. Its totient is φ = 42571096.

The previous prime is 42571093. The next prime is 42571121. The reversal of 42571097 is 79017524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30349081 + 12222016 = 5509^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 42571097 - 2² = 42571093 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42571093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21285548 + 21285549.

It is an arithmetic number, because the mean of its divisors is an integer number (21285549).

Almost surely, 2^42571097 is an apocalyptic number.

It is an amenable number.

42571097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42571097 is an equidigital number, since it uses as much as digits as its factorization.

42571097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 42571097 is about 6524.6530175941. The cubic root of 42571097 is about 349.1710914987.

The spelling of 42571097 in words is "forty-two million, five hundred seventy-one thousand, ninety-seven".