12963955 has 4 divisors (see below), whose sum is σ = 15556752. Its totient is φ = 10371160.

The previous prime is 12963943. The next prime is 12963967. The reversal of 12963955 is 55936921.

It is a happy number.

12963955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55936921 = 113 ⋅495017.

It is an interprime number because it is at equal distance from previous prime (12963943) and next prime (12963967).

It is not a de Polignac number, because 12963955 - 2⁹ = 12963443 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296391 + ... + 1296400.

It is an arithmetic number, because the mean of its divisors is an integer number (3889188).

Almost surely, 2^12963955 is an apocalyptic number.

12963955 is a deficient number, since it is larger than the sum of its proper divisors (2592797).

12963955 is an equidigital number, since it uses as much as digits as its factorization.

12963955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592796.

The product of its digits is 72900, while the sum is 40.

The square root of 12963955 is about 3600.5492636541. The cubic root of 12963955 is about 234.9159500238.

The spelling of 12963955 in words is "twelve million, nine hundred sixty-three thousand, nine hundred fifty-five".