104745781 has 6 divisors (see below), whose sum is σ = 121847190. Its totient is φ = 89782056.

The previous prime is 104745769. The next prime is 104745793. The reversal of 104745781 is 187547401.

It is an interprime number because it is at equal distance from previous prime (104745769) and next prime (104745793).

It can be written as a sum of positive squares in only one way, i.e., 104734756 + 11025 = 10234^2 + 105^2 .

It is not a de Polignac number, because 104745781 - 2⁹ = 104745269 is a prime.

It is a super-2 number, since 2×104745781² = 21943357274599922, which contains 22 as substring.

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 104745781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104745761) 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, 1068786 + ... + 1068883.

It is an arithmetic number, because the mean of its divisors is an integer number (20307865).

Almost surely, 2^104745781 is an apocalyptic number.

It is an amenable number.

104745781 is a deficient number, since it is larger than the sum of its proper divisors (17101409).

104745781 is an equidigital number, since it uses as much as digits as its factorization.

104745781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137683 (or 2137676 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 104745781 is about 10234.5386315163. The cubic root of 104745781 is about 471.3883514727.

The spelling of 104745781 in words is "one hundred four million, seven hundred forty-five thousand, seven hundred eighty-one".