22130631 has 8 divisors (see below), whose sum is σ = 32786160. Its totient is φ = 14753736.

The previous prime is 22130609. The next prime is 22130653. The reversal of 22130631 is 13603122.

22130631 is a `hidden beast` number, since 2 + 2 + 1 + 30 + 631 = 666.

It is an interprime number because it is at equal distance from previous prime (22130609) and next prime (22130653).

It is not a de Polignac number, because 22130631 - 2⁷ = 22130503 is a prime.

It is a super-2 number, since 2×22130631² = 979529656916322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130671) 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, 409800 + ... + 409853.

It is an arithmetic number, because the mean of its divisors is an integer number (4098270).

Almost surely, 2^22130631 is an apocalyptic number.

22130631 is a deficient number, since it is larger than the sum of its proper divisors (10655529).

22130631 is an equidigital number, since it uses as much as digits as its factorization.

22130631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819662 (or 819656 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 22130631 is about 4704.3204610230. The cubic root of 22130631 is about 280.7574347417.

Adding to 22130631 its reverse (13603122), we get a palindrome (35733753).

The spelling of 22130631 in words is "twenty-two million, one hundred thirty thousand, six hundred thirty-one".