104532409 has 2 divisors, whose sum is σ = 104532410. Its totient is φ = 104532408.

The previous prime is 104532391. The next prime is 104532457. The reversal of 104532409 is 904235401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82301184 + 22231225 = 9072^2 + 4715^2 .

It is an emirp because it is prime and its reverse (904235401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104532409 - 2⁹ = 104531897 is a prime.

It is not a weakly prime, because it can be changed into another prime (104532499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52266204 + 52266205.

It is an arithmetic number, because the mean of its divisors is an integer number (52266205).

Almost surely, 2^104532409 is an apocalyptic number.

It is an amenable number.

104532409 is a deficient number, since it is larger than the sum of its proper divisors (1).

104532409 is an equidigital number, since it uses as much as digits as its factorization.

104532409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 104532409 is about 10224.1092032509. The cubic root of 104532409 is about 471.0680539299.

The spelling of 104532409 in words is "one hundred four million, five hundred thirty-two thousand, four hundred nine".