225152109 has 144 divisors (see below), whose sum is σ = 450619200. Its totient is φ = 110388096.

The previous prime is 225152099. The next prime is 225152119. The reversal of 225152109 is 901251522.

It is an interprime number because it is at equal distance from previous prime (225152099) and next prime (225152119).

It is not a de Polignac number, because 225152109 - 2¹⁶ = 225086573 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 not an unprimeable number, because it can be changed into a prime (225152119) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4248127 + ... + 4248179.

It is an arithmetic number, because the mean of its divisors is an integer number (3129300).

Almost surely, 2^225152109 is an apocalyptic number.

It is an amenable number.

225152109 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

225152109 is a wasteful number, since it uses less digits than its factorization.

225152109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 225152109 is about 15005.0694433581. The cubic root of 225152109 is about 608.3572290774.

The spelling of 225152109 in words is "two hundred twenty-five million, one hundred fifty-two thousand, one hundred nine".