90999067141 has 2 divisors, whose sum is σ = 90999067142. Its totient is φ = 90999067140.

The previous prime is 90999067129. The next prime is 90999067177. The reversal of 90999067141 is 14176099909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50780369025 + 40218698116 = 225345^2 + 200546^2 .

It is a cyclic number.

It is not a de Polignac number, because 90999067141 - 2⁷ = 90999067013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90999067121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45499533570 + 45499533571.

It is an arithmetic number, because the mean of its divisors is an integer number (45499533571).

Almost surely, 2^90999067141 is an apocalyptic number.

It is an amenable number.

90999067141 is a deficient number, since it is larger than the sum of its proper divisors (1).

90999067141 is an equidigital number, since it uses as much as digits as its factorization.

90999067141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The spelling of 90999067141 in words is "ninety billion, nine hundred ninety-nine million, sixty-seven thousand, one hundred forty-one".