104621345 has 4 divisors (see below), whose sum is σ = 125545620. Its totient is φ = 83697072.

The previous prime is 104621339. The next prime is 104621347. The reversal of 104621345 is 543126401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543126401 = 1249 ⋅434849.

It can be written as a sum of positive squares in 2 ways, for example, as 32982049 + 71639296 = 5743^2 + 8464^2 .

It is a cyclic number.

It is not a de Polignac number, because 104621345 - 2⁴ = 104621329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104621347) 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, 10462130 + ... + 10462139.

It is an arithmetic number, because the mean of its divisors is an integer number (31386405).

Almost surely, 2^104621345 is an apocalyptic number.

It is an amenable number.

104621345 is a deficient number, since it is larger than the sum of its proper divisors (20924275).

104621345 is an equidigital number, since it uses as much as digits as its factorization.

104621345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20924274.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 104621345 is about 10228.4576061105. The cubic root of 104621345 is about 471.2016106998.

Adding to 104621345 its reverse (543126401), we get a palindrome (647747746).

The spelling of 104621345 in words is "one hundred four million, six hundred twenty-one thousand, three hundred forty-five".