227148809 has 8 divisors (see below), whose sum is σ = 236576448. Its totient is φ = 217894320.

The previous prime is 227148797. The next prime is 227148821. The reversal of 227148809 is 908841722.

It is an interprime number because it is at equal distance from previous prime (227148797) and next prime (227148821).

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 227148809 - 2¹² = 227144713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227148209) 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, 40607 + ... + 45860.

It is an arithmetic number, because the mean of its divisors is an integer number (29572056).

Almost surely, 2^227148809 is an apocalyptic number.

It is an amenable number.

227148809 is a deficient number, since it is larger than the sum of its proper divisors (9427639).

227148809 is an equidigital number, since it uses as much as digits as its factorization.

227148809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86575.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 227148809 is about 15071.4567643609. The cubic root of 227148809 is about 610.1502890466.

The spelling of 227148809 in words is "two hundred twenty-seven million, one hundred forty-eight thousand, eight hundred nine".