90202741 has 2 divisors, whose sum is σ = 90202742. Its totient is φ = 90202740.

The previous prime is 90202601. The next prime is 90202759. The reversal of 90202741 is 14720209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84180625 + 6022116 = 9175^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 90202741 - 2¹⁹ = 89678453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90202241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45101370 + 45101371.

It is an arithmetic number, because the mean of its divisors is an integer number (45101371).

Almost surely, 2^90202741 is an apocalyptic number.

It is an amenable number.

90202741 is a deficient number, since it is larger than the sum of its proper divisors (1).

90202741 is an equidigital number, since it uses as much as digits as its factorization.

90202741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 90202741 is about 9497.5123585074. The cubic root of 90202741 is about 448.4767276549.

The spelling of 90202741 in words is "ninety million, two hundred two thousand, seven hundred forty-one".