12247631 has 4 divisors (see below), whose sum is σ = 13361064. Its totient is φ = 11134200.

The previous prime is 12247619. The next prime is 12247637. The reversal of 12247631 is 13674221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13674221 = 11 ⋅1243111.

It is not a de Polignac number, because 12247631 - 2¹⁰ = 12246607 is a prime.

It is a super-2 number, since 2×12247631² = 300008930224322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12247631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556700 + ... + 556721.

It is an arithmetic number, because the mean of its divisors is an integer number (3340266).

Almost surely, 2^12247631 is an apocalyptic number.

12247631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12247631 is a deficient number, since it is larger than the sum of its proper divisors (1113433).

12247631 is a wasteful number, since it uses less digits than its factorization.

12247631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113432.

The product of its digits is 2016, while the sum is 26.

The square root of 12247631 is about 3499.6615550650. The cubic root of 12247631 is about 230.5069536128.

The spelling of 12247631 in words is "twelve million, two hundred forty-seven thousand, six hundred thirty-one".