15238223 has 24 divisors (see below), whose sum is σ = 20589696. Its totient is φ = 10951200.

The previous prime is 15238193. The next prime is 15238229. The reversal of 15238223 is 32283251.

It is not a de Polignac number, because 15238223 - 2⁶ = 15238159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15238192 and 15238201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15238229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12428 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (857904).

Almost surely, 2^15238223 is an apocalyptic number.

15238223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15238223 is a deficient number, since it is larger than the sum of its proper divisors (5351473).

15238223 is a wasteful number, since it uses less digits than its factorization.

15238223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1202 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 15238223 is about 3903.6166563842. The cubic root of 15238223 is about 247.9199305771.

The spelling of 15238223 in words is "fifteen million, two hundred thirty-eight thousand, two hundred twenty-three".