180513613 has 8 divisors (see below), whose sum is σ = 211099328. Its totient is φ = 151127424.

The previous prime is 180513583. The next prime is 180513617. The reversal of 180513613 is 316315081.

180513613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180513613 - 2⁵ = 180513581 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 (180513617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299556 + ... + 300157.

It is an arithmetic number, because the mean of its divisors is an integer number (26387416).

Almost surely, 2^180513613 is an apocalyptic number.

It is an amenable number.

180513613 is a deficient number, since it is larger than the sum of its proper divisors (30585715).

180513613 is an equidigital number, since it uses as much as digits as its factorization.

180513613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599763.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 180513613 is about 13435.5354563932. The cubic root of 180513613 is about 565.1581388338.

Adding to 180513613 its reverse (316315081), we get a palindrome (496828694).

The spelling of 180513613 in words is "one hundred eighty million, five hundred thirteen thousand, six hundred thirteen".