104242545 has 40 divisors (see below), whose sum is σ = 203860800. Its totient is φ = 50539680.

The previous prime is 104242543. The next prime is 104242549. The reversal of 104242545 is 545242401.

It is not a de Polignac number, because 104242545 - 2¹ = 104242543 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 (104242543) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7245 + ... + 16154.

It is an arithmetic number, because the mean of its divisors is an integer number (5096520).

Almost surely, 2^104242545 is an apocalyptic number.

104242545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104242545 is a deficient number, since it is larger than the sum of its proper divisors (99618255).

104242545 is a wasteful number, since it uses less digits than its factorization.

104242545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23427 (or 23418 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 104242545 is about 10209.9238488835. The cubic root of 104242545 is about 470.6322335042.

Adding to 104242545 its reverse (545242401), we get a palindrome (649484946).

The spelling of 104242545 in words is "one hundred four million, two hundred forty-two thousand, five hundred forty-five".