225890159 has 4 divisors (see below), whose sum is σ = 246425640. Its totient is φ = 205354680.

The previous prime is 225890141. The next prime is 225890167. The reversal of 225890159 is 951098522.

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-225890159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225890129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10267724 + ... + 10267745.

It is an arithmetic number, because the mean of its divisors is an integer number (61606410).

Almost surely, 2^225890159 is an apocalyptic number.

225890159 is a deficient number, since it is larger than the sum of its proper divisors (20535481).

225890159 is a wasteful number, since it uses less digits than its factorization.

225890159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20535480.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 225890159 is about 15029.6426770566. The cubic root of 225890159 is about 609.0212369790.

The spelling of 225890159 in words is "two hundred twenty-five million, eight hundred ninety thousand, one hundred fifty-nine".