15113238 has 64 divisors (see below), whose sum is σ = 37283328. Its totient is φ = 3985920.

The previous prime is 15113207. The next prime is 15113239. The reversal of 15113238 is 83231151.

15113238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×15113238⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15113239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43381 + ... + 43727.

It is an arithmetic number, because the mean of its divisors is an integer number (582552).

Almost surely, 2^15113238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15113238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18641664).

15113238 is an abundant number, since it is smaller than the sum of its proper divisors (22170090).

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

15113238 is a wasteful number, since it uses less digits than its factorization.

15113238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437.

The product of its digits is 720, while the sum is 24.

The square root of 15113238 is about 3887.5748224311. The cubic root of 15113238 is about 247.2402498845.

Adding to 15113238 its reverse (83231151), we get a palindrome (98344389).

It can be divided in two parts, 15113 and 238, that added together give a palindrome (15351).

The spelling of 15113238 in words is "fifteen million, one hundred thirteen thousand, two hundred thirty-eight".