227249831 has 2 divisors, whose sum is σ = 227249832. Its totient is φ = 227249830.

The previous prime is 227249801. The next prime is 227249837. The reversal of 227249831 is 138942722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227249831 is a prime.

It is a super-2 number, since 2×227249831² = 103284971379057122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227249837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113624915 + 113624916.

It is an arithmetic number, because the mean of its divisors is an integer number (113624916).

Almost surely, 2^227249831 is an apocalyptic number.

227249831 is a deficient number, since it is larger than the sum of its proper divisors (1).

227249831 is an equidigital number, since it uses as much as digits as its factorization.

227249831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 227249831 is about 15074.8078263041. The cubic root of 227249831 is about 610.2407282428.

The spelling of 227249831 in words is "two hundred twenty-seven million, two hundred forty-nine thousand, eight hundred thirty-one".