22425145 has 16 divisors (see below), whose sum is σ = 28290240. Its totient is φ = 17043264.

The previous prime is 22425107. The next prime is 22425163. The reversal of 22425145 is 54152422.

22425145 = 1493² + 1494² + ... + 1502².

It is a cyclic number.

It is not a de Polignac number, because 22425145 - 2²³ = 14036537 is a prime.

It is an unprimeable number.

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, 6546 + ... + 9364.

It is an arithmetic number, because the mean of its divisors is an integer number (1768140).

Almost surely, 2^22425145 is an apocalyptic number.

It is an amenable number.

22425145 is a deficient number, since it is larger than the sum of its proper divisors (5865095).

22425145 is a wasteful number, since it uses less digits than its factorization.

22425145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904.

The product of its digits is 3200, while the sum is 25.

The square root of 22425145 is about 4735.5195068757. The cubic root of 22425145 is about 281.9973886048.

Adding to 22425145 its reverse (54152422), we get a palindrome (76577567).

The spelling of 22425145 in words is "twenty-two million, four hundred twenty-five thousand, one hundred forty-five".