90260101 has 2 divisors, whose sum is σ = 90260102. Its totient is φ = 90260100.

The previous prime is 90260083. The next prime is 90260111. The reversal of 90260101 is 10106209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 20520900 = 8351^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 90260101 - 2¹⁹ = 89735813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90260111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45130050 + 45130051.

It is an arithmetic number, because the mean of its divisors is an integer number (45130051).

Almost surely, 2^90260101 is an apocalyptic number.

It is an amenable number.

90260101 is a deficient number, since it is larger than the sum of its proper divisors (1).

90260101 is an equidigital number, since it uses as much as digits as its factorization.

90260101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 90260101 is about 9500.5316167044. The cubic root of 90260101 is about 448.5717697567.

The spelling of 90260101 in words is "ninety million, two hundred sixty thousand, one hundred one".