12516042 has 32 divisors (see below), whose sum is σ = 31209984. Its totient is φ = 3250800.

The previous prime is 12516037. The next prime is 12516043. The reversal of 12516042 is 24061521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12516043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13084 + ... + 14007.

It is an arithmetic number, because the mean of its divisors is an integer number (975312).

Almost surely, 2^12516042 is an apocalyptic number.

12516042 is an abundant number, since it is smaller than the sum of its proper divisors (18693942).

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

12516042 is a wasteful number, since it uses less digits than its factorization.

12516042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27114.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12516042 is about 3537.8018599125. The cubic root of 12516042 is about 232.1786797308.

Adding to 12516042 its reverse (24061521), we get a palindrome (36577563).

The spelling of 12516042 in words is "twelve million, five hundred sixteen thousand, forty-two".