90949163 has 2 divisors, whose sum is σ = 90949164. Its totient is φ = 90949162.

The previous prime is 90949147. The next prime is 90949207. The reversal of 90949163 is 36194909.

It is a weak prime.

It is an emirp because it is prime and its reverse (36194909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90949163 - 2⁴ = 90949147 is a prime.

It is equal to p_5268947 and since 90949163 and 5268947 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90949163.

It is not a weakly prime, because it can be changed into another prime (90949123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45474581 + 45474582.

It is an arithmetic number, because the mean of its divisors is an integer number (45474582).

Almost surely, 2^90949163 is an apocalyptic number.

90949163 is a deficient number, since it is larger than the sum of its proper divisors (1).

90949163 is an equidigital number, since it uses as much as digits as its factorization.

90949163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 90949163 is about 9536.7270591121. The cubic root of 90949163 is about 449.7103700063.

The spelling of 90949163 in words is "ninety million, nine hundred forty-nine thousand, one hundred sixty-three".