227493961 has 2 divisors, whose sum is σ = 227493962. Its totient is φ = 227493960.

The previous prime is 227493919. The next prime is 227493991. The reversal of 227493961 is 169394722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142945936 + 84548025 = 11956^2 + 9195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227493961 is a prime.

It is not a weakly prime, because it can be changed into another prime (227493901) 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 as a sum of consecutive naturals, namely, 113746980 + 113746981.

It is an arithmetic number, because the mean of its divisors is an integer number (113746981).

Almost surely, 2^227493961 is an apocalyptic number.

It is an amenable number.

227493961 is a deficient number, since it is larger than the sum of its proper divisors (1).

227493961 is an equidigital number, since it uses as much as digits as its factorization.

227493961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 227493961 is about 15082.9029367692. The cubic root of 227493961 is about 610.4591732204.

The spelling of 227493961 in words is "two hundred twenty-seven million, four hundred ninety-three thousand, nine hundred sixty-one".