225140445 has 64 divisors (see below), whose sum is σ = 431308800. Its totient is φ = 111101760.

The previous prime is 225140437. The next prime is 225140453. The reversal of 225140445 is 544041522.

225140445 is a `hidden beast` number, since 2 + 251 + 404 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (225140437) and next prime (225140453).

It is not a de Polignac number, because 225140445 - 2³ = 225140437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95086 + ... + 97424.

It is an arithmetic number, because the mean of its divisors is an integer number (6739200).

Almost surely, 2^225140445 is an apocalyptic number.

It is an amenable number.

225140445 is a deficient number, since it is larger than the sum of its proper divisors (206168355).

225140445 is a wasteful number, since it uses less digits than its factorization.

225140445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 225140445 is about 15004.6807696798. The cubic root of 225140445 is about 608.3467235851.

Adding to 225140445 its reverse (544041522), we get a palindrome (769181967).

The spelling of 225140445 in words is "two hundred twenty-five million, one hundred forty thousand, four hundred forty-five".