12538086 has 32 divisors (see below), whose sum is σ = 27495936. Its totient is φ = 3780000.

The previous prime is 12538073. The next prime is 12538109. The reversal of 12538086 is 68083521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17536 + ... + 18236.

It is an arithmetic number, because the mean of its divisors is an integer number (859248).

Almost surely, 2^12538086 is an apocalyptic number.

12538086 is an abundant number, since it is smaller than the sum of its proper divisors (14957850).

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

12538086 is a wasteful number, since it uses less digits than its factorization.

12538086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12538086 is about 3540.9159831885. The cubic root of 12538086 is about 232.3149087654.

It can be divided in two parts, 1253 and 8086, that added together give a palindrome (9339).

The spelling of 12538086 in words is "twelve million, five hundred thirty-eight thousand, eighty-six".