31622045 has 16 divisors (see below), whose sum is σ = 46704000. Its totient is φ = 20015424.

The previous prime is 31621981. The next prime is 31622047. The reversal of 31622045 is 54022613.

It is not a de Polignac number, because 31622045 - 2⁶ = 31621981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31622045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31622047) 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, 34295 + ... + 35204.

It is an arithmetic number, because the mean of its divisors is an integer number (2919000).

Almost surely, 2^31622045 is an apocalyptic number.

31622045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31622045 is a deficient number, since it is larger than the sum of its proper divisors (15081955).

31622045 is a wasteful number, since it uses less digits than its factorization.

31622045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69524.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 31622045 is about 5623.3482019167. The cubic root of 31622045 is about 316.2253273258.

Adding to 31622045 its reverse (54022613), we get a palindrome (85644658).

The spelling of 31622045 in words is "thirty-one million, six hundred twenty-two thousand, forty-five".