12450631 has 4 divisors (see below), whose sum is σ = 12626064. Its totient is φ = 12275200.

The previous prime is 12450619. The next prime is 12450653. The reversal of 12450631 is 13605421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12450631 is a prime.

It is a super-2 number, since 2×12450631² = 310036424596322, 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 (12450671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87610 + ... + 87751.

It is an arithmetic number, because the mean of its divisors is an integer number (3156516).

Almost surely, 2^12450631 is an apocalyptic number.

12450631 is a deficient number, since it is larger than the sum of its proper divisors (175433).

12450631 is an equidigital number, since it uses as much as digits as its factorization.

12450631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175432.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12450631 is about 3528.5451676293. The cubic root of 12450631 is about 231.7735044258.

The spelling of 12450631 in words is "twelve million, four hundred fifty thousand, six hundred thirty-one".