104521047 has 4 divisors (see below), whose sum is σ = 139361400. Its totient is φ = 69680696.

The previous prime is 104521031. The next prime is 104521061. The reversal of 104521047 is 740125401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104521047 - 2⁴ = 104521031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104521447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17420172 + ... + 17420177.

It is an arithmetic number, because the mean of its divisors is an integer number (34840350).

Almost surely, 2^104521047 is an apocalyptic number.

104521047 is a deficient number, since it is larger than the sum of its proper divisors (34840353).

104521047 is an equidigital number, since it uses as much as digits as its factorization.

104521047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34840352.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 104521047 is about 10223.5535407215. The cubic root of 104521047 is about 471.0509859564.

Adding to 104521047 its reverse (740125401), we get a palindrome (844646448).

The spelling of 104521047 in words is "one hundred four million, five hundred twenty-one thousand, forty-seven".