104161545 has 20 divisors (see below), whose sum is σ = 186719940. Its totient is φ = 55552608.

The previous prime is 104161543. The next prime is 104161559. The reversal of 104161545 is 545161401.

104161545 is a `hidden beast` number, since 1 + 0 + 4 + 1 + 615 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11943936 + 92217609 = 3456^2 + 9603^2 .

It is not a de Polignac number, because 104161545 - 2¹ = 104161543 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 (104161543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 128190 + ... + 128999.

It is an arithmetic number, because the mean of its divisors is an integer number (9335997).

Almost surely, 2^104161545 is an apocalyptic number.

104161545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104161545 is a deficient number, since it is larger than the sum of its proper divisors (82558395).

104161545 is an equidigital number, since it uses as much as digits as its factorization.

104161545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257206 (or 257197 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 104161545 is about 10205.9563491130. The cubic root of 104161545 is about 470.5103028375.

The spelling of 104161545 in words is "one hundred four million, one hundred sixty-one thousand, five hundred forty-five".