225157194 has 12 divisors (see below), whose sum is σ = 487840626. Its totient is φ = 75052392.

The previous prime is 225157187. The next prime is 225157217. The reversal of 225157194 is 491751522.

It can be written as a sum of positive squares in only one way, i.e., 216531225 + 8625969 = 14715^2 + 2937^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6254349 + ... + 6254384.

Almost surely, 2^225157194 is an apocalyptic number.

225157194 is an abundant number, since it is smaller than the sum of its proper divisors (262683432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225157194 is a wasteful number, since it uses less digits than its factorization.

225157194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508741 (or 12508738 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 225157194 is about 15005.2388851361. The cubic root of 225157194 is about 608.3618089045.

The spelling of 225157194 in words is "two hundred twenty-five million, one hundred fifty-seven thousand, one hundred ninety-four".