22131733 has 6 divisors (see below), whose sum is σ = 23965314. Its totient is φ = 20429136.

The previous prime is 22131731. The next prime is 22131749. The reversal of 22131733 is 33713122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1127844 + 21003889 = 1062^2 + 4583^2 .

It is not a de Polignac number, because 22131733 - 2¹ = 22131731 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65310 + ... + 65647.

It is an arithmetic number, because the mean of its divisors is an integer number (3994219).

Almost surely, 2^22131733 is an apocalyptic number.

It is an amenable number.

22131733 is a deficient number, since it is larger than the sum of its proper divisors (1833581).

22131733 is a wasteful number, since it uses less digits than its factorization.

22131733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130983 (or 130970 counting only the distinct ones).

The product of its digits is 756, while the sum is 22.

The square root of 22131733 is about 4704.4375859395. The cubic root of 22131733 is about 280.7620947920.

Adding to 22131733 its reverse (33713122), we get a palindrome (55844855).

The spelling of 22131733 in words is "twenty-two million, one hundred thirty-one thousand, seven hundred thirty-three".