225138859 has 8 divisors (see below), whose sum is σ = 250240752. Its totient is φ = 200809440.

The previous prime is 225138857. The next prime is 225138877. The reversal of 225138859 is 958831522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225138859 - 2¹ = 225138857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225138857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192504 + ... + 193669.

It is an arithmetic number, because the mean of its divisors is an integer number (31280094).

Almost surely, 2^225138859 is an apocalyptic number.

225138859 is a deficient number, since it is larger than the sum of its proper divisors (25101893).

225138859 is a wasteful number, since it uses less digits than its factorization.

225138859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386237.

The product of its digits is 172800, while the sum is 43.

The square root of 225138859 is about 15004.6279194121. The cubic root of 225138859 is about 608.3452950839.

The spelling of 225138859 in words is "two hundred twenty-five million, one hundred thirty-eight thousand, eight hundred fifty-nine".