180930313 has 4 divisors (see below), whose sum is σ = 181634580. Its totient is φ = 180226048.

The previous prime is 180930301. The next prime is 180930319. The reversal of 180930313 is 313039081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157427209 + 23503104 = 12547^2 + 4848^2 .

It is a cyclic number.

It is not a de Polignac number, because 180930313 - 2¹³ = 180922121 is a prime.

It is a house number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180930319) 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, 351748 + ... + 352261.

It is an arithmetic number, because the mean of its divisors is an integer number (45408645).

Almost surely, 2^180930313 is an apocalyptic number.

It is an amenable number.

180930313 is a deficient number, since it is larger than the sum of its proper divisors (704267).

180930313 is an equidigital number, since it uses as much as digits as its factorization.

180930313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704266.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 180930313 is about 13451.0339007825. The cubic root of 180930313 is about 565.5926774688.

Adding to 180930313 its reverse (313039081), we get a palindrome (493969394).

The spelling of 180930313 in words is "one hundred eighty million, nine hundred thirty thousand, three hundred thirteen".