104157811 has 4 divisors (see below), whose sum is σ = 104194152. Its totient is φ = 104121472.

The previous prime is 104157803. The next prime is 104157847. The reversal of 104157811 is 118751401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104157811 - 2³ = 104157803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104157811.

It is not an unprimeable number, because it can be changed into a prime (104157881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13465 + ... + 19738.

It is an arithmetic number, because the mean of its divisors is an integer number (26048538).

Almost surely, 2^104157811 is an apocalyptic number.

104157811 is a deficient number, since it is larger than the sum of its proper divisors (36341).

104157811 is an equidigital number, since it uses as much as digits as its factorization.

104157811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36340.

The product of its (nonzero) digits is 1120, while the sum is 28.

The square root of 104157811 is about 10205.7734150823. The cubic root of 104157811 is about 470.5046804604.

The spelling of 104157811 in words is "one hundred four million, one hundred fifty-seven thousand, eight hundred eleven".