12915233 has 4 divisors (see below), whose sum is σ = 13092228. Its totient is φ = 12738240.

The previous prime is 12915209. The next prime is 12915239. The reversal of 12915233 is 33251921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6927424 + 5987809 = 2632^2 + 2447^2 .

It is a cyclic number.

It is not a de Polignac number, because 12915233 - 2⁶ = 12915169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12915239) 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, 88388 + ... + 88533.

It is an arithmetic number, because the mean of its divisors is an integer number (3273057).

Almost surely, 2^12915233 is an apocalyptic number.

It is an amenable number.

12915233 is a deficient number, since it is larger than the sum of its proper divisors (176995).

12915233 is an equidigital number, since it uses as much as digits as its factorization.

12915233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176994.

The product of its digits is 1620, while the sum is 26.

The square root of 12915233 is about 3593.7769825074. The cubic root of 12915233 is about 234.6212883140.

The spelling of 12915233 in words is "twelve million, nine hundred fifteen thousand, two hundred thirty-three".