225194689 has 4 divisors (see below), whose sum is σ = 225255424. Its totient is φ = 225133956.

The previous prime is 225194639. The next prime is 225194701. The reversal of 225194689 is 986491522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225194689 - 2¹¹ = 225192641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225194639) 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 3 ways as a sum of consecutive naturals, for example, 24417 + ... + 32350.

It is an arithmetic number, because the mean of its divisors is an integer number (56313856).

Almost surely, 2^225194689 is an apocalyptic number.

It is an amenable number.

225194689 is a deficient number, since it is larger than the sum of its proper divisors (60735).

225194689 is an equidigital number, since it uses as much as digits as its factorization.

225194689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60734.

The product of its digits is 311040, while the sum is 46.

The square root of 225194689 is about 15006.4882300957. The cubic root of 225194689 is about 608.3955768092.

The spelling of 225194689 in words is "two hundred twenty-five million, one hundred ninety-four thousand, six hundred eighty-nine".