15123230 has 8 divisors (see below), whose sum is σ = 27221832. Its totient is φ = 6049288.

The previous prime is 15123223. The next prime is 15123247. The reversal of 15123230 is 3232151.

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

It is a junction number, because it is equal to n+sod(n) for n = 15123199 and 15123208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756152 + ... + 756171.

It is an arithmetic number, because the mean of its divisors is an integer number (3402729).

Almost surely, 2^15123230 is an apocalyptic number.

15123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15123230 is a deficient number, since it is larger than the sum of its proper divisors (12098602).

15123230 is a wasteful number, since it uses less digits than its factorization.

15123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512330.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 15123230 is about 3888.8597300494. The cubic root of 15123230 is about 247.2947248717.

Adding to 15123230 its reverse (3232151), we get a palindrome (18355381).

The spelling of 15123230 in words is "fifteen million, one hundred twenty-three thousand, two hundred thirty".