90095261 has 2 divisors, whose sum is σ = 90095262. Its totient is φ = 90095260.

The previous prime is 90095227. The next prime is 90095281. The reversal of 90095261 is 16259009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87516025 + 2579236 = 9355^2 + 1606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90095261 is a 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 (90095281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45047630 + 45047631.

It is an arithmetic number, because the mean of its divisors is an integer number (45047631).

Almost surely, 2^90095261 is an apocalyptic number.

It is an amenable number.

90095261 is a deficient number, since it is larger than the sum of its proper divisors (1).

90095261 is an equidigital number, since it uses as much as digits as its factorization.

90095261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 90095261 is about 9491.8523481984. The cubic root of 90095261 is about 448.2985311619.

The spelling of 90095261 in words is "ninety million, ninety-five thousand, two hundred sixty-one".