90281941 has 2 divisors, whose sum is σ = 90281942. Its totient is φ = 90281940.

The previous prime is 90281929. The next prime is 90281957. The reversal of 90281941 is 14918209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90060100 + 221841 = 9490^2 + 471^2 .

It is a cyclic number.

It is not a de Polignac number, because 90281941 - 2²³ = 81893333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90281897 and 90281906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90281921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45140970 + 45140971.

It is an arithmetic number, because the mean of its divisors is an integer number (45140971).

Almost surely, 2^90281941 is an apocalyptic number.

It is an amenable number.

90281941 is a deficient number, since it is larger than the sum of its proper divisors (1).

90281941 is an equidigital number, since it uses as much as digits as its factorization.

90281941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 90281941 is about 9501.6809565466. The cubic root of 90281941 is about 448.6079467506.

The spelling of 90281941 in words is "ninety million, two hundred eighty-one thousand, nine hundred forty-one".