104111865 has 64 divisors (see below), whose sum is σ = 217486080. Its totient is φ = 46586880.

The previous prime is 104111851. The next prime is 104111867. The reversal of 104111865 is 568111401.

It is not a de Polignac number, because 104111865 - 2⁷ = 104111737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (104111867) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16609 + ... + 22001.

It is an arithmetic number, because the mean of its divisors is an integer number (3398220).

Almost surely, 2^104111865 is an apocalyptic number.

104111865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104111865 is an abundant number, since it is smaller than the sum of its proper divisors (113374215).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104111865 is a wasteful number, since it uses less digits than its factorization.

104111865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 104111865 is about 10203.5221859905. The cubic root of 104111865 is about 470.4354874180.

It can be divided in two parts, 104111 and 865, that added together give a 4-th power (104976 = 18⁴).

The spelling of 104111865 in words is "one hundred four million, one hundred eleven thousand, eight hundred sixty-five".