12755906 has 4 divisors (see below), whose sum is σ = 19133862. Its totient is φ = 6377952.

The previous prime is 12755903. The next prime is 12755909. The reversal of 12755906 is 60955721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60955721 = 157 ⋅388253.

It is an interprime number because it is at equal distance from previous prime (12755903) and next prime (12755909).

It can be written as a sum of positive squares in only one way, i.e., 11526025 + 1229881 = 3395^2 + 1109^2 .

It is not an unprimeable number, because it can be changed into a prime (12755903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188975 + ... + 3188978.

Almost surely, 2^12755906 is an apocalyptic number.

12755906 is a deficient number, since it is larger than the sum of its proper divisors (6377956).

12755906 is an equidigital number, since it uses as much as digits as its factorization.

12755906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377955.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 12755906 is about 3571.5411239408. The cubic root of 12755906 is about 233.6525024489.

The spelling of 12755906 in words is "twelve million, seven hundred fifty-five thousand, nine hundred six".