13115242 has 24 divisors (see below), whose sum is σ = 23509764. Its totient is φ = 5467392.

The previous prime is 13115239. The next prime is 13115243. The reversal of 13115242 is 24251131.

13115242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 219961 = 3591^2 + 469^2 .

It is not an unprimeable number, because it can be changed into a prime (13115243) 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, 1818 + ... + 5434.

Almost surely, 2^13115242 is an apocalyptic number.

13115242 is a deficient number, since it is larger than the sum of its proper divisors (10394522).

13115242 is a wasteful number, since it uses less digits than its factorization.

13115242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670 (or 3663 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 13115242 is about 3621.4972041961. The cubic root of 13115242 is about 235.8262270525.

Adding to 13115242 its reverse (24251131), we get a palindrome (37366373).

The spelling of 13115242 in words is "thirteen million, one hundred fifteen thousand, two hundred forty-two".