12631954 has 4 divisors (see below), whose sum is σ = 18947934. Its totient is φ = 6315976.

The previous prime is 12631951. The next prime is 12631961. The reversal of 12631954 is 45913621.

12631954 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.

It can be written as a sum of positive squares in only one way, i.e., 11256025 + 1375929 = 3355^2 + 1173^2 .

It is not an unprimeable number, because it can be changed into a prime (12631951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157987 + ... + 3157990.

Almost surely, 2^12631954 is an apocalyptic number.

12631954 is a deficient number, since it is larger than the sum of its proper divisors (6315980).

12631954 is an equidigital number, since it uses as much as digits as its factorization.

12631954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315979.

The product of its digits is 6480, while the sum is 31.

The square root of 12631954 is about 3554.1460296392. The cubic root of 12631954 is about 232.8932198126.

It can be divided in two parts, 126 and 31954, that multiplied together give a palindrome (4026204).

The spelling of 12631954 in words is "twelve million, six hundred thirty-one thousand, nine hundred fifty-four".