180749243 has 4 divisors (see below), whose sum is σ = 180916008. Its totient is φ = 180582480.

The previous prime is 180749237. The next prime is 180749281. The reversal of 180749243 is 342947081.

180749243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 180749243 - 2⁴ = 180749227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180749197 and 180749206.

It is not an unprimeable number, because it can be changed into a prime (180749143) 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, 81746 + ... + 83927.

It is an arithmetic number, because the mean of its divisors is an integer number (45229002).

Almost surely, 2^180749243 is an apocalyptic number.

180749243 is a deficient number, since it is larger than the sum of its proper divisors (166765).

180749243 is a wasteful number, since it uses less digits than its factorization.

180749243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166764.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 180749243 is about 13444.3015065863. The cubic root of 180749243 is about 565.4039380456.

The spelling of 180749243 in words is "one hundred eighty million, seven hundred forty-nine thousand, two hundred forty-three".