90211301 has 2 divisors, whose sum is σ = 90211302. Its totient is φ = 90211300.

The previous prime is 90211273. The next prime is 90211327. The reversal of 90211301 is 10311209.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84456100 + 5755201 = 9190^2 + 2399^2 .

It is a cyclic number.

It is not a de Polignac number, because 90211301 - 2⁶ = 90211237 is a prime.

It is a super-2 number, since 2×90211301² = 16276157656225202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90211301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90211391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45105650 + 45105651.

It is an arithmetic number, because the mean of its divisors is an integer number (45105651).

Almost surely, 2^90211301 is an apocalyptic number.

It is an amenable number.

90211301 is a deficient number, since it is larger than the sum of its proper divisors (1).

90211301 is an equidigital number, since it uses as much as digits as its factorization.

90211301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 90211301 is about 9497.9629921368. The cubic root of 90211301 is about 448.4909136221.

The spelling of 90211301 in words is "ninety million, two hundred eleven thousand, three hundred one".