104120145 has 24 divisors (see below), whose sum is σ = 181148136. Its totient is φ = 55323648.

The previous prime is 104120141. The next prime is 104120147. The reversal of 104120145 is 541021401.

It can be written as a sum of positive squares in 4 ways, for example, as 5157441 + 98962704 = 2271^2 + 9948^2 .

It is not a de Polignac number, because 104120145 - 2² = 104120141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104120141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8289 + ... + 16641.

It is an arithmetic number, because the mean of its divisors is an integer number (7547839).

Almost surely, 2^104120145 is an apocalyptic number.

104120145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104120145 is a deficient number, since it is larger than the sum of its proper divisors (77027991).

104120145 is a wasteful number, since it uses less digits than its factorization.

104120145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641 (or 8638 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 104120145 is about 10203.9279201688. The cubic root of 104120145 is about 470.4479583071.

Adding to 104120145 its reverse (541021401), we get a palindrome (645141546).

The spelling of 104120145 in words is "one hundred four million, one hundred twenty thousand, one hundred forty-five".