15338243 has 4 divisors (see below), whose sum is σ = 15567240. Its totient is φ = 15109248.

The previous prime is 15338231. The next prime is 15338261. The reversal of 15338243 is 34283351.

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

It is a cyclic number.

It is not a de Polignac number, because 15338243 - 2⁴ = 15338227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15332243) 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, 114398 + ... + 114531.

It is an arithmetic number, because the mean of its divisors is an integer number (3891810).

Almost surely, 2^15338243 is an apocalyptic number.

15338243 is a deficient number, since it is larger than the sum of its proper divisors (228997).

15338243 is an equidigital number, since it uses as much as digits as its factorization.

15338243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228996.

The product of its digits is 8640, while the sum is 29.

The square root of 15338243 is about 3916.4068991871. The cubic root of 15338243 is about 248.4611768608.

The spelling of 15338243 in words is "fifteen million, three hundred thirty-eight thousand, two hundred forty-three".