225169307 has 4 divisors (see below), whose sum is σ = 245639256. Its totient is φ = 204699360.

The previous prime is 225169277. The next prime is 225169313. The reversal of 225169307 is 703961522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225169307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225169367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10234958 + ... + 10234979.

It is an arithmetic number, because the mean of its divisors is an integer number (61409814).

Almost surely, 2^225169307 is an apocalyptic number.

225169307 is a deficient number, since it is larger than the sum of its proper divisors (20469949).

225169307 is a wasteful number, since it uses less digits than its factorization.

225169307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469948.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 225169307 is about 15005.6425054044. The cubic root of 225169307 is about 608.3727182524.

The spelling of 225169307 in words is "two hundred twenty-five million, one hundred sixty-nine thousand, three hundred seven".