90546481 has 2 divisors, whose sum is σ = 90546482. Its totient is φ = 90546480.

The previous prime is 90546479. The next prime is 90546541. The reversal of 90546481 is 18464509.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69155856 + 21390625 = 8316^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 90546481 - 2¹ = 90546479 is a prime.

It is a super-2 number, since 2×90546481² = 16397330442966722, which contains 22 as substring.

Together with 90546479, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90546481.

It is not a weakly prime, because it can be changed into another prime (90546431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45273240 + 45273241.

It is an arithmetic number, because the mean of its divisors is an integer number (45273241).

Almost surely, 2^90546481 is an apocalyptic number.

It is an amenable number.

90546481 is a deficient number, since it is larger than the sum of its proper divisors (1).

90546481 is an equidigital number, since it uses as much as digits as its factorization.

90546481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 90546481 is about 9515.5914687422. The cubic root of 90546481 is about 449.0456829559.

The spelling of 90546481 in words is "ninety million, five hundred forty-six thousand, four hundred eighty-one".