22125145 has 8 divisors (see below), whose sum is σ = 30343104. Its totient is φ = 15171504.

The previous prime is 22125113. The next prime is 22125151. The reversal of 22125145 is 54152122.

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

It is a cyclic number.

It is not a de Polignac number, because 22125145 - 2⁵ = 22125113 is a prime.

It is a Duffinian number.

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, 316039 + ... + 316108.

It is an arithmetic number, because the mean of its divisors is an integer number (3792888).

Almost surely, 2^22125145 is an apocalyptic number.

It is an amenable number.

22125145 is a deficient number, since it is larger than the sum of its proper divisors (8217959).

22125145 is an equidigital number, since it uses as much as digits as its factorization.

22125145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632159.

The product of its digits is 800, while the sum is 22.

The square root of 22125145 is about 4703.7373438575. The cubic root of 22125145 is about 280.7342336775.

Adding to 22125145 its reverse (54152122), we get a palindrome (76277267).

The spelling of 22125145 in words is "twenty-two million, one hundred twenty-five thousand, one hundred forty-five".