180104609 has 4 divisors (see below), whose sum is σ = 181110960. Its totient is φ = 179098260.

The previous prime is 180104599. The next prime is 180104623. The reversal of 180104609 is 906401081.

180104609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 906401081 = 619 ⋅1464299.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180104609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180104009) 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, 502907 + ... + 503264.

It is an arithmetic number, because the mean of its divisors is an integer number (45277740).

Almost surely, 2^180104609 is an apocalyptic number.

It is an amenable number.

180104609 is a deficient number, since it is larger than the sum of its proper divisors (1006351).

180104609 is a wasteful number, since it uses less digits than its factorization.

180104609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006350.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 180104609 is about 13420.3058459932. The cubic root of 180104609 is about 564.7309748554.

The spelling of 180104609 in words is "one hundred eighty million, one hundred four thousand, six hundred nine".