18130177 has 8 divisors (see below), whose sum is σ = 20673576. Its totient is φ = 15750912.

The previous prime is 18130153. The next prime is 18130193. The reversal of 18130177 is 77103181.

It can be written as a sum of positive squares in 4 ways, for example, as 16641 + 18113536 = 129^2 + 4256^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18130177 - 2¹¹ = 18128129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18130127) 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, 40798 + ... + 41239.

It is an arithmetic number, because the mean of its divisors is an integer number (2584197).

Almost surely, 2^18130177 is an apocalyptic number.

18130177 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18130177 is a deficient number, since it is larger than the sum of its proper divisors (2543399).

18130177 is a wasteful number, since it uses less digits than its factorization.

18130177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82067.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 18130177 is about 4257.9545558871. The cubic root of 18130177 is about 262.7044007376.

The spelling of 18130177 in words is "eighteen million, one hundred thirty thousand, one hundred seventy-seven".