42513135 has 32 divisors (see below), whose sum is σ = 79334400. Its totient is φ = 19432224.

The previous prime is 42513113. The next prime is 42513143. The reversal of 42513135 is 53131524.

It is not a de Polignac number, because 42513135 - 2⁵ = 42513103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014 + ... + 9276.

It is an arithmetic number, because the mean of its divisors is an integer number (2479200).

Almost surely, 2^42513135 is an apocalyptic number.

42513135 is a deficient number, since it is larger than the sum of its proper divisors (36821265).

42513135 is an equidigital number, since it uses as much as digits as its factorization.

42513135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8292 (or 8278 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 42513135 is about 6520.2097358904. The cubic root of 42513135 is about 349.0125500751.

Adding to 42513135 its reverse (53131524), we get a palindrome (95644659).

The spelling of 42513135 in words is "forty-two million, five hundred thirteen thousand, one hundred thirty-five".