104001091 has 2 divisors, whose sum is σ = 104001092. Its totient is φ = 104001090.

The previous prime is 104001077. The next prime is 104001103. The reversal of 104001091 is 190100401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104001091 - 2⁵ = 104001059 is a prime.

It is not a weakly prime, because it can be changed into another prime (104301091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52000545 + 52000546.

It is an arithmetic number, because the mean of its divisors is an integer number (52000546).

Almost surely, 2^104001091 is an apocalyptic number.

104001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

104001091 is an equidigital number, since it uses as much as digits as its factorization.

104001091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 104001091 is about 10198.0925177211. The cubic root of 104001091 is about 470.2685819654.

Adding to 104001091 its reverse (190100401), we get a palindrome (294101492).

The spelling of 104001091 in words is "one hundred four million, one thousand, ninety-one".