227145100 has 144 divisors (see below), whose sum is σ = 614891200. Its totient is φ = 70917120.

The previous prime is 227145089. The next prime is 227145119. The reversal of 227145100 is 1541722.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 991786 + ... + 992014.

Almost surely, 2^227145100 is an apocalyptic number.

227145100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227145100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307445600).

227145100 is an abundant number, since it is smaller than the sum of its proper divisors (387746100).

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

227145100 is a wasteful number, since it uses less digits than its factorization.

227145100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 227145100 is about 15071.3337166954. Note that the first 3 decimals coincide. The cubic root of 227145100 is about 610.1469680816.

Adding to 227145100 its reverse (1541722), we get a palindrome (228686822).

The spelling of 227145100 in words is "two hundred twenty-seven million, one hundred forty-five thousand, one hundred".