227169961 has 2 divisors, whose sum is σ = 227169962. Its totient is φ = 227169960.

The previous prime is 227169923. The next prime is 227169991. The reversal of 227169961 is 169961722.

It is a happy number.

227169961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211527936 + 15642025 = 14544^2 + 3955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227169961 is a prime.

It is not a weakly prime, because it can be changed into another prime (227169991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113584980 + 113584981.

It is an arithmetic number, because the mean of its divisors is an integer number (113584981).

Almost surely, 2^227169961 is an apocalyptic number.

It is an amenable number.

227169961 is a deficient number, since it is larger than the sum of its proper divisors (1).

227169961 is an equidigital number, since it uses as much as digits as its factorization.

227169961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 227169961 is about 15072.1584718314. The cubic root of 227169961 is about 610.1692274368.

The spelling of 227169961 in words is "two hundred twenty-seven million, one hundred sixty-nine thousand, nine hundred sixty-one".