12915433 has 2 divisors, whose sum is σ = 12915434. Its totient is φ = 12915432.

The previous prime is 12915403. The next prime is 12915439. The reversal of 12915433 is 33451921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 1545049 = 3372^2 + 1243^2 .

It is a cyclic number.

It is not a de Polignac number, because 12915433 - 2¹³ = 12907241 is a prime.

It is not a weakly prime, because it can be changed into another prime (12915439) 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 as a sum of consecutive naturals, namely, 6457716 + 6457717.

It is an arithmetic number, because the mean of its divisors is an integer number (6457717).

Almost surely, 2^12915433 is an apocalyptic number.

It is an amenable number.

12915433 is a deficient number, since it is larger than the sum of its proper divisors (1).

12915433 is an equidigital number, since it uses as much as digits as its factorization.

12915433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 12915433 is about 3593.8048082777. The cubic root of 12915433 is about 234.6224993908.

It can be divided in two parts, 1291 and 5433, that added together give a square (6724 = 82²).

The spelling of 12915433 in words is "twelve million, nine hundred fifteen thousand, four hundred thirty-three".