12631319 has 8 divisors (see below), whose sum is σ = 13017888. Its totient is φ = 12247200.

The previous prime is 12631303. The next prime is 12631337. The reversal of 12631319 is 91313621.

12631319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12631319 - 2⁴ = 12631303 is a prime.

It is a super-2 number, since 2×12631319² = 319100439359522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17669 + ... + 18369.

It is an arithmetic number, because the mean of its divisors is an integer number (1627236).

Almost surely, 2^12631319 is an apocalyptic number.

12631319 is a deficient number, since it is larger than the sum of its proper divisors (386569).

12631319 is an equidigital number, since it uses as much as digits as its factorization.

12631319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its digits is 972, while the sum is 26.

The square root of 12631319 is about 3554.0566962276. The cubic root of 12631319 is about 232.8893172843.

The spelling of 12631319 in words is "twelve million, six hundred thirty-one thousand, three hundred nineteen".