105890459 has 6 divisors (see below), whose sum is σ = 110695116. Its totient is φ = 101286020.

The previous prime is 105890443. The next prime is 105890461. The reversal of 105890459 is 954098501.

It is a happy number.

It is not a de Polignac number, because 105890459 - 2⁴ = 105890443 is a prime.

It is a super-2 number, since 2×105890459² = 22425578614461362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105890429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99557 + ... + 100614.

It is an arithmetic number, because the mean of its divisors is an integer number (18449186).

Almost surely, 2^105890459 is an apocalyptic number.

105890459 is a deficient number, since it is larger than the sum of its proper divisors (4804657).

105890459 is an equidigital number, since it uses as much as digits as its factorization.

105890459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200217 (or 200194 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 105890459 is about 10290.3089846710. The cubic root of 105890459 is about 473.0992689306.

The spelling of 105890459 in words is "one hundred five million, eight hundred ninety thousand, four hundred fifty-nine".