227275813 has 8 divisors (see below), whose sum is σ = 238969080. Its totient is φ = 215839680.

The previous prime is 227275799. The next prime is 227275823. The reversal of 227275813 is 318572722.

It can be written as a sum of positive squares in 4 ways, for example, as 1014049 + 226261764 = 1007^2 + 15042^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227275813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227275823) 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, 62470 + ... + 66007.

It is an arithmetic number, because the mean of its divisors is an integer number (29871135).

Almost surely, 2^227275813 is an apocalyptic number.

It is an amenable number.

227275813 is a deficient number, since it is larger than the sum of its proper divisors (11693267).

227275813 is a wasteful number, since it uses less digits than its factorization.

227275813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128567.

The product of its digits is 47040, while the sum is 37.

The square root of 227275813 is about 15075.6695705365. The cubic root of 227275813 is about 610.2639841022.

The spelling of 227275813 in words is "two hundred twenty-seven million, two hundred seventy-five thousand, eight hundred thirteen".