104105145 has 16 divisors (see below), whose sum is σ = 167012352. Its totient is φ = 55374720.

The previous prime is 104105143. The next prime is 104105149. The reversal of 104105145 is 541501401.

It is not a de Polignac number, because 104105145 - 2¹ = 104105143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104105143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3316 + ... + 14805.

It is an arithmetic number, because the mean of its divisors is an integer number (10438272).

Almost surely, 2^104105145 is an apocalyptic number.

104105145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104105145 is a deficient number, since it is larger than the sum of its proper divisors (62907207).

104105145 is a wasteful number, since it uses less digits than its factorization.

104105145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18512.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 104105145 is about 10203.1928826226. The cubic root of 104105145 is about 470.4253656306.

Adding to 104105145 its reverse (541501401), we get a palindrome (645606546).

The spelling of 104105145 in words is "one hundred four million, one hundred five thousand, one hundred forty-five".