42052131 has 12 divisors (see below), whose sum is σ = 66264120. Its totient is φ = 25486080.

The previous prime is 42052079. The next prime is 42052147. The reversal of 42052131 is 13125024.

It is not a de Polignac number, because 42052131 - 2⁹ = 42051619 is a prime.

It is a super-2 number, since 2×42052131² = 3536763443282322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42052181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212286 + ... + 212483.

It is an arithmetic number, because the mean of its divisors is an integer number (5522010).

Almost surely, 2^42052131 is an apocalyptic number.

42052131 is a deficient number, since it is larger than the sum of its proper divisors (24211989).

42052131 is a wasteful number, since it uses less digits than its factorization.

42052131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424786 (or 424783 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 42052131 is about 6484.7614451111. The cubic root of 42052131 is about 347.7464214916.

Adding to 42052131 its reverse (13125024), we get a palindrome (55177155).

It can be divided in two parts, 4205 and 2131, that added together give a palindrome (6336).

The spelling of 42052131 in words is "forty-two million, fifty-two thousand, one hundred thirty-one".