22145325 has 12 divisors (see below), whose sum is σ = 36613728. Its totient is φ = 11810800.

The previous prime is 22145323. The next prime is 22145327. The reversal of 22145325 is 52354122.

It is an interprime number because it is at equal distance from previous prime (22145323) and next prime (22145327).

It is not a de Polignac number, because 22145325 - 2¹ = 22145323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22145295 and 22145304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145323) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 147561 + ... + 147710.

It is an arithmetic number, because the mean of its divisors is an integer number (3051144).

Almost surely, 2^22145325 is an apocalyptic number.

22145325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22145325 is a deficient number, since it is larger than the sum of its proper divisors (14468403).

22145325 is a wasteful number, since it uses less digits than its factorization.

22145325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295284 (or 295279 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 22145325 is about 4705.8819577206. The cubic root of 22145325 is about 280.8195588482.

Adding to 22145325 its reverse (52354122), we get a palindrome (74499447).

The spelling of 22145325 in words is "twenty-two million, one hundred forty-five thousand, three hundred twenty-five".