730181 has 8 divisors (see below), whose sum is σ = 777600. Its totient is φ = 684112.

The previous prime is 730157. The next prime is 730187. The reversal of 730181 is 181037.

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

It is a de Polignac number, because none of the positive numbers 2^k-730181 is a prime.

It is a super-2 number, since 2×730181² = 1066328585522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730187) 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, 920 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2⁷³⁰¹⁸¹ is an apocalyptic number.

It is an amenable number.

730181 is a deficient number, since it is larger than the sum of its proper divisors (47419).

730181 is a wasteful number, since it uses less digits than its factorization.

730181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 730181 is about 854.5062902051. The cubic root of 730181 is about 90.0485746018.

The spelling of 730181 in words is "seven hundred thirty thousand, one hundred eighty-one".