15233121 has 24 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 9676800.

The previous prime is 15233093. The next prime is 15233203. The reversal of 15233121 is 12133251.

It is not a de Polignac number, because 15233121 - 2⁵ = 15233089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15233094 and 15233103.

It is not an unprimeable number, because it can be changed into a prime (15233021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19425 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^15233121 is an apocalyptic number.

It is an amenable number.

15233121 is a deficient number, since it is larger than the sum of its proper divisors (7829919).

15233121 is a wasteful number, since it uses less digits than its factorization.

15233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 874 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 15233121 is about 3902.9631051292. The cubic root of 15233121 is about 247.8922583068.

Adding to 15233121 its reverse (12133251), we get a palindrome (27366372).

The spelling of 15233121 in words is "fifteen million, two hundred thirty-three thousand, one hundred twenty-one".