22163031 has 16 divisors (see below), whose sum is σ = 35819520. Its totient is φ = 13431960.

The previous prime is 22163027. The next prime is 22163033. The reversal of 22163031 is 13036122.

22163031 is a `hidden beast` number, since 2 + 2 + 1 + 630 + 31 = 666.

It is not a de Polignac number, because 22163031 - 2² = 22163027 is a prime.

It is a super-2 number, since 2×22163031² = 982399886213922, which contains 22 as substring.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 22162995 and 22163013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37015 + ... + 37608.

It is an arithmetic number, because the mean of its divisors is an integer number (2238720).

Almost surely, 2^22163031 is an apocalyptic number.

22163031 is a deficient number, since it is larger than the sum of its proper divisors (13656489).

22163031 is a wasteful number, since it uses less digits than its factorization.

22163031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74643 (or 74637 counting only the distinct ones).

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

The square root of 22163031 is about 4707.7628444942. The cubic root of 22163031 is about 280.8943807582.

Adding to 22163031 its reverse (13036122), we get a palindrome (35199153).

The spelling of 22163031 in words is "twenty-two million, one hundred sixty-three thousand, thirty-one".