22125146 has 4 divisors (see below), whose sum is σ = 33187722. Its totient is φ = 11062572.

The previous prime is 22125113. The next prime is 22125151. The reversal of 22125146 is 64152122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64152122 = 2 ⋅32076061.

It can be written as a sum of positive squares in only one way, i.e., 20151121 + 1974025 = 4489^2 + 1405^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5531285 + ... + 5531288.

Almost surely, 2^22125146 is an apocalyptic number.

22125146 is a deficient number, since it is larger than the sum of its proper divisors (11062576).

22125146 is a wasteful number, since it uses less digits than its factorization.

22125146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062575.

The product of its digits is 960, while the sum is 23.

The square root of 22125146 is about 4703.7374501560. The cubic root of 22125146 is about 280.7342379069.

Adding to 22125146 its reverse (64152122), we get a palindrome (86277268).

The spelling of 22125146 in words is "twenty-two million, one hundred twenty-five thousand, one hundred forty-six".