15228039 has 8 divisors (see below), whose sum is σ = 21498480. Its totient is φ = 9554816.

The previous prime is 15228029. The next prime is 15228041. The reversal of 15228039 is 93082251.

It is a happy number.

15228039 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15228039 - 2⁵ = 15228007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15227997 and 15228015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15228029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149244 + ... + 149345.

It is an arithmetic number, because the mean of its divisors is an integer number (2687310).

Almost surely, 2^15228039 is an apocalyptic number.

15228039 is a deficient number, since it is larger than the sum of its proper divisors (6270441).

15228039 is a wasteful number, since it uses less digits than its factorization.

15228039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298609.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 15228039 is about 3902.3120070030. The cubic root of 15228039 is about 247.8646883693.

The spelling of 15228039 in words is "fifteen million, two hundred twenty-eight thousand, thirty-nine".