22132945 has 8 divisors (see below), whose sum is σ = 27475560. Its totient is φ = 17095680.

The previous prime is 22132931. The next prime is 22132961. The reversal of 22132945 is 54923122.

It can be written as a sum of positive squares in 4 ways, for example, as 5329 + 22127616 = 73^2 + 4704^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22132945 - 2¹¹ = 22130897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76176 + ... + 76465.

It is an arithmetic number, because the mean of its divisors is an integer number (3434445).

Almost surely, 2^22132945 is an apocalyptic number.

It is an amenable number.

22132945 is a deficient number, since it is larger than the sum of its proper divisors (5342615).

22132945 is a wasteful number, since it uses less digits than its factorization.

22132945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152675.

The product of its digits is 4320, while the sum is 28.

The square root of 22132945 is about 4704.5663987237. The cubic root of 22132945 is about 280.7672198229.

The spelling of 22132945 in words is "twenty-two million, one hundred thirty-two thousand, nine hundred forty-five".