180480491 has 4 divisors (see below), whose sum is σ = 180510792. Its totient is φ = 180450192.

The previous prime is 180480451. The next prime is 180480493. The reversal of 180480491 is 194084081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194084081 = 193 ⋅1005617.

It is a cyclic number.

It is not a de Polignac number, because 180480491 - 2¹⁸ = 180218347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180480493) 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, 2930 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (45127698).

Almost surely, 2^180480491 is an apocalyptic number.

180480491 is a deficient number, since it is larger than the sum of its proper divisors (30301).

180480491 is an equidigital number, since it uses as much as digits as its factorization.

180480491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30300.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 180480491 is about 13434.3027731252. The cubic root of 180480491 is about 565.1235702260.

The spelling of 180480491 in words is "one hundred eighty million, four hundred eighty thousand, four hundred ninety-one".