180493706 has 4 divisors (see below), whose sum is σ = 270740562. Its totient is φ = 90246852.

The previous prime is 180493681. The next prime is 180493717. The reversal of 180493706 is 607394081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607394081 = 7 ⋅86770583.

It can be written as a sum of positive squares in only one way, i.e., 106275481 + 74218225 = 10309^2 + 8615^2 .

It is a super-2 number, since 2×180493706² = 65155955811228872, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 180493706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45123425 + ... + 45123428.

Almost surely, 2^180493706 is an apocalyptic number.

180493706 is a deficient number, since it is larger than the sum of its proper divisors (90246856).

180493706 is an equidigital number, since it uses as much as digits as its factorization.

180493706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90246855.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 180493706 is about 13434.7946020771. The cubic root of 180493706 is about 565.1373628999.

The spelling of 180493706 in words is "one hundred eighty million, four hundred ninety-three thousand, seven hundred six".