104042281 has 4 divisors (see below), whose sum is σ = 118905472. Its totient is φ = 89179092.

The previous prime is 104042207. The next prime is 104042287. The reversal of 104042281 is 182240401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104042281 - 2¹³ = 104034089 is a prime.

It is a super-2 number, since 2×104042281² = 21649592471365922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104042287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7431585 + ... + 7431598.

It is an arithmetic number, because the mean of its divisors is an integer number (29726368).

Almost surely, 2^104042281 is an apocalyptic number.

It is an amenable number.

104042281 is a deficient number, since it is larger than the sum of its proper divisors (14863191).

104042281 is an equidigital number, since it uses as much as digits as its factorization.

104042281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863190.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 104042281 is about 10200.1118131126. Note that the first 3 decimals coincide. The cubic root of 104042281 is about 470.3306576162.

Adding to 104042281 its reverse (182240401), we get a palindrome (286282682).

The spelling of 104042281 in words is "one hundred four million, forty-two thousand, two hundred eighty-one".