181401713 has 16 divisors (see below), whose sum is σ = 205856640. Its totient is φ = 158881536.

The previous prime is 181401707. The next prime is 181401719. The reversal of 181401713 is 317104181.

It is an interprime number because it is at equal distance from previous prime (181401707) and next prime (181401719).

It is a cyclic number.

It is not a de Polignac number, because 181401713 - 2⁴ = 181401697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181401719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8198 + ... + 20736.

It is an arithmetic number, because the mean of its divisors is an integer number (12866040).

Almost surely, 2^181401713 is an apocalyptic number.

It is an amenable number.

181401713 is a deficient number, since it is larger than the sum of its proper divisors (24454927).

181401713 is a wasteful number, since it uses less digits than its factorization.

181401713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 181401713 is about 13468.5453186304. The cubic root of 181401713 is about 566.0834542129.

Adding to 181401713 its reverse (317104181), we get a palindrome (498505894).

The spelling of 181401713 in words is "one hundred eighty-one million, four hundred one thousand, seven hundred thirteen".