180479487 has 4 divisors (see below), whose sum is σ = 240639320. Its totient is φ = 120319656.

The previous prime is 180479479. The next prime is 180479491. The reversal of 180479487 is 784974081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784974081 = 3 ⋅261658027.

It is not a de Polignac number, because 180479487 - 2³ = 180479479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180479437) 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, 30079912 + ... + 30079917.

It is an arithmetic number, because the mean of its divisors is an integer number (60159830).

Almost surely, 2^180479487 is an apocalyptic number.

180479487 is a deficient number, since it is larger than the sum of its proper divisors (60159833).

180479487 is an equidigital number, since it uses as much as digits as its factorization.

180479487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60159832.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 180479487 is about 13434.2654060429. The cubic root of 180479487 is about 565.1225223101.

The spelling of 180479487 in words is "one hundred eighty million, four hundred seventy-nine thousand, four hundred eighty-seven".