12949631 has 8 divisors (see below), whose sum is σ = 14184720. Its totient is φ = 11767168.

The previous prime is 12949627. The next prime is 12949639. The reversal of 12949631 is 13694921.

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 12949631 - 2² = 12949627 is a prime.

It is a super-2 number, since 2×12949631² = 335385886072322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12949591 and 12949600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949639) 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, 12641 + ... + 13626.

It is an arithmetic number, because the mean of its divisors is an integer number (1773090).

Almost surely, 2^12949631 is an apocalyptic number.

12949631 is a deficient number, since it is larger than the sum of its proper divisors (1235089).

12949631 is a wasteful number, since it uses less digits than its factorization.

12949631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26313.

The product of its digits is 11664, while the sum is 35.

The square root of 12949631 is about 3598.5595729403. The cubic root of 12949631 is about 234.8293978323.

The spelling of 12949631 in words is "twelve million, nine hundred forty-nine thousand, six hundred thirty-one".