225545146 has 4 divisors (see below), whose sum is σ = 338317722. Its totient is φ = 112772572.

The previous prime is 225545129. The next prime is 225545149. The reversal of 225545146 is 641545522.

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

It can be written as a sum of positive squares in only one way, i.e., 169130025 + 56415121 = 13005^2 + 7511^2 .

It is a super-2 number, since 2×225545146² = 101741225768322632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225545149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56386285 + ... + 56386288.

Almost surely, 2^225545146 is an apocalyptic number.

225545146 is a deficient number, since it is larger than the sum of its proper divisors (112772576).

225545146 is a wasteful number, since it uses less digits than its factorization.

225545146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112772575.

The product of its digits is 48000, while the sum is 34.

The square root of 225545146 is about 15018.1605398264. The cubic root of 225545146 is about 608.7110164254.

The spelling of 225545146 in words is "two hundred twenty-five million, five hundred forty-five thousand, one hundred forty-six".