12750631 has 8 divisors (see below), whose sum is σ = 13117104. Its totient is φ = 12386880.

The previous prime is 12750613. The next prime is 12750637. The reversal of 12750631 is 13605721.

12750631 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 12750631 - 2¹¹ = 12748583 is a prime.

It is a super-2 number, since 2×12750631² = 325157181796322, 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 = 12750596 and 12750605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12750637) 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, 12081 + ... + 13093.

It is an arithmetic number, because the mean of its divisors is an integer number (1639638).

Almost surely, 2^12750631 is an apocalyptic number.

12750631 is a deficient number, since it is larger than the sum of its proper divisors (366473).

12750631 is a wasteful number, since it uses less digits than its factorization.

12750631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 12750631 is about 3570.8025708515. The cubic root of 12750631 is about 233.6202902619.

The spelling of 12750631 in words is "twelve million, seven hundred fifty thousand, six hundred thirty-one".