180740613 has 4 divisors (see below), whose sum is σ = 240987488. Its totient is φ = 120493740.

The previous prime is 180740603. The next prime is 180740629. The reversal of 180740613 is 316047081.

It is a happy number.

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.

It is not a de Polignac number, because 180740613 - 2⁹ = 180740101 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 (180740603) 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, 30123433 + ... + 30123438.

It is an arithmetic number, because the mean of its divisors is an integer number (60246872).

Almost surely, 2^180740613 is an apocalyptic number.

It is an amenable number.

180740613 is a deficient number, since it is larger than the sum of its proper divisors (60246875).

180740613 is an equidigital number, since it uses as much as digits as its factorization.

180740613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60246874.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 180740613 is about 13443.9805489297. The cubic root of 180740613 is about 565.3949393659.

Adding to 180740613 its reverse (316047081), we get a palindrome (496787694).

The spelling of 180740613 in words is "one hundred eighty million, seven hundred forty thousand, six hundred thirteen".