15109228 has 6 divisors (see below), whose sum is σ = 26441156. Its totient is φ = 7554612.

The previous prime is 15109219. The next prime is 15109247. The reversal of 15109228 is 82290151.

15109228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15109196 and 15109205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1888650 + ... + 1888657.

Almost surely, 2^15109228 is an apocalyptic number.

It is an amenable number.

15109228 is a deficient number, since it is larger than the sum of its proper divisors (11331928).

15109228 is a wasteful number, since it uses less digits than its factorization.

15109228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777311 (or 3777309 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 15109228 is about 3887.0590425153. The cubic root of 15109228 is about 247.2183811735.

Adding to 15109228 its reverse (82290151), we get a palindrome (97399379).

The spelling of 15109228 in words is "fifteen million, one hundred nine thousand, two hundred twenty-eight".