227312381 has 8 divisors (see below), whose sum is σ = 237375360. Its totient is φ = 217264432.

The previous prime is 227312363. The next prime is 227312383. The reversal of 227312381 is 183213722.

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 227312381 - 2²⁶ = 160203517 is a prime.

It is a super-2 number, since 2×227312381² = 103341837111778322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227312383) 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, 36416 + ... + 42198.

It is an arithmetic number, because the mean of its divisors is an integer number (29671920).

Almost surely, 2^227312381 is an apocalyptic number.

It is an amenable number.

227312381 is a deficient number, since it is larger than the sum of its proper divisors (10062979).

227312381 is a wasteful number, since it uses less digits than its factorization.

227312381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515.

The product of its digits is 4032, while the sum is 29.

The square root of 227312381 is about 15076.8823368759. The cubic root of 227312381 is about 610.2967122315.

The spelling of 227312381 in words is "two hundred twenty-seven million, three hundred twelve thousand, three hundred eighty-one".