42452117 has 2 divisors, whose sum is σ = 42452118. Its totient is φ = 42452116.

The previous prime is 42452083. The next prime is 42452131. The reversal of 42452117 is 71125424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30019441 + 12432676 = 5479^2 + 3526^2 .

It is a cyclic number.

It is not a de Polignac number, because 42452117 - 2¹⁴ = 42435733 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 (42452717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21226058 + 21226059.

It is an arithmetic number, because the mean of its divisors is an integer number (21226059).

Almost surely, 2^42452117 is an apocalyptic number.

It is an amenable number.

42452117 is a deficient number, since it is larger than the sum of its proper divisors (1).

42452117 is an equidigital number, since it uses as much as digits as its factorization.

42452117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 26.

The square root of 42452117 is about 6515.5289117615. The cubic root of 42452117 is about 348.8454939055.

The spelling of 42452117 in words is "forty-two million, four hundred fifty-two thousand, one hundred seventeen".