227712081 has 16 divisors (see below), whose sum is σ = 315532800. Its totient is φ = 145916160.

The previous prime is 227712053. The next prime is 227712083. The reversal of 227712081 is 180217722.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-227712081 is a prime.

It is a super-2 number, since 2×227712081² = 103705583666701122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (227712083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5641 + ... + 22073.

It is an arithmetic number, because the mean of its divisors is an integer number (19720800).

Almost surely, 2^227712081 is an apocalyptic number.

It is an amenable number.

227712081 is a deficient number, since it is larger than the sum of its proper divisors (87820719).

227712081 is a wasteful number, since it uses less digits than its factorization.

227712081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16616.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 227712081 is about 15090.1319079722. The cubic root of 227712081 is about 610.6542125690.

The spelling of 227712081 in words is "two hundred twenty-seven million, seven hundred twelve thousand, eighty-one".