42513102 has 24 divisors (see below), whose sum is σ = 93851784. Its totient is φ = 13903344.

The previous prime is 42513091. The next prime is 42513103. The reversal of 42513102 is 20131524.

42513102 is nontrivially palindromic in base 13.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42513103) 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, 21328 + ... + 23235.

It is an arithmetic number, because the mean of its divisors is an integer number (3910491).

Almost surely, 2^42513102 is an apocalyptic number.

42513102 is an abundant number, since it is smaller than the sum of its proper divisors (51338682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42513102 is a wasteful number, since it uses less digits than its factorization.

42513102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44624 (or 44621 counting only the distinct ones).

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

The square root of 42513102 is about 6520.2072052965. The cubic root of 42513102 is about 349.0124597703.

Adding to 42513102 its reverse (20131524), we get a palindrome (62644626).

The spelling of 42513102 in words is "forty-two million, five hundred thirteen thousand, one hundred two".