15229243 has 4 divisors (see below), whose sum is σ = 15891408. Its totient is φ = 14567080.

The previous prime is 15229223. The next prime is 15229259. The reversal of 15229243 is 34292251.

15229243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15229243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15229213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331048 + ... + 331093.

It is an arithmetic number, because the mean of its divisors is an integer number (3972852).

Almost surely, 2^15229243 is an apocalyptic number.

15229243 is a deficient number, since it is larger than the sum of its proper divisors (662165).

15229243 is an equidigital number, since it uses as much as digits as its factorization.

15229243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662164.

The product of its digits is 4320, while the sum is 28.

The square root of 15229243 is about 3902.4662714750. The cubic root of 15229243 is about 247.8712206444.

The spelling of 15229243 in words is "fifteen million, two hundred twenty-nine thousand, two hundred forty-three".