90181411 has 2 divisors, whose sum is σ = 90181412. Its totient is φ = 90181410.

The previous prime is 90181369. The next prime is 90181433. The reversal of 90181411 is 11418109.

It is a strong prime.

It is an emirp because it is prime and its reverse (11418109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90181411 - 2⁷ = 90181283 is a prime.

It is not a weakly prime, because it can be changed into another prime (90181451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45090705 + 45090706.

It is an arithmetic number, because the mean of its divisors is an integer number (45090706).

Almost surely, 2^90181411 is an apocalyptic number.

90181411 is a deficient number, since it is larger than the sum of its proper divisors (1).

90181411 is an equidigital number, since it uses as much as digits as its factorization.

90181411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 90181411 is about 9496.3893664908. The cubic root of 90181411 is about 448.4413748389.

The spelling of 90181411 in words is "ninety million, one hundred eighty-one thousand, four hundred eleven".