90389141 has 2 divisors, whose sum is σ = 90389142. Its totient is φ = 90389140.

The previous prime is 90389081. The next prime is 90389161. The reversal of 90389141 is 14198309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76912900 + 13476241 = 8770^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 90389141 - 2¹⁰ = 90388117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90389161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45194570 + 45194571.

It is an arithmetic number, because the mean of its divisors is an integer number (45194571).

Almost surely, 2^90389141 is an apocalyptic number.

It is an amenable number.

90389141 is a deficient number, since it is larger than the sum of its proper divisors (1).

90389141 is an equidigital number, since it uses as much as digits as its factorization.

90389141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 90389141 is about 9507.3203900994. The cubic root of 90389141 is about 448.7854342589.

The spelling of 90389141 in words is "ninety million, three hundred eighty-nine thousand, one hundred forty-one".