227940081 has 4 divisors (see below), whose sum is σ = 303920112. Its totient is φ = 151960052.

The previous prime is 227940079. The next prime is 227940101. The reversal of 227940081 is 180049722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 227940081 - 2¹ = 227940079 is a prime.

It is a super-2 number, since 2×227940081² = 103913361052573122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (227940061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37990011 + ... + 37990016.

It is an arithmetic number, because the mean of its divisors is an integer number (75980028).

Almost surely, 2^227940081 is an apocalyptic number.

It is an amenable number.

227940081 is a deficient number, since it is larger than the sum of its proper divisors (75980031).

227940081 is an equidigital number, since it uses as much as digits as its factorization.

227940081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75980030.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 227940081 is about 15097.6846238090. The cubic root of 227940081 is about 610.8579533591.

The spelling of 227940081 in words is "two hundred twenty-seven million, nine hundred forty thousand, eighty-one".