12955399 has 2 divisors, whose sum is σ = 12955400. Its totient is φ = 12955398.

The previous prime is 12955391. The next prime is 12955421. The reversal of 12955399 is 99355921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12955399 - 2³ = 12955391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12955391) by changing a digit.

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 as a sum of consecutive naturals, namely, 6477699 + 6477700.

It is an arithmetic number, because the mean of its divisors is an integer number (6477700).

Almost surely, 2^12955399 is an apocalyptic number.

12955399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12955399 is an equidigital number, since it uses as much as digits as its factorization.

12955399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 43.

The square root of 12955399 is about 3599.3609154960. The cubic root of 12955399 is about 234.8642584115.

The spelling of 12955399 in words is "twelve million, nine hundred fifty-five thousand, three hundred ninety-nine".