13156242 has 16 divisors (see below), whose sum is σ = 28704672. Its totient is φ = 3986720.

The previous prime is 13156163. The next prime is 13156259. The reversal of 13156242 is 24265131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99603 + ... + 99734.

It is an arithmetic number, because the mean of its divisors is an integer number (1794042).

Almost surely, 2^13156242 is an apocalyptic number.

13156242 is an abundant number, since it is smaller than the sum of its proper divisors (15548430).

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

13156242 is a wasteful number, since it uses less digits than its factorization.

13156242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199353.

The product of its digits is 1440, while the sum is 24.

The square root of 13156242 is about 3627.1534293437. The cubic root of 13156242 is about 236.0717128613.

Subtracting 13156242 from its reverse (24265131), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1315 and 6242, that added together give a palindrome (7557).

The spelling of 13156242 in words is "thirteen million, one hundred fifty-six thousand, two hundred forty-two".