181423713 has 8 divisors (see below), whose sum is σ = 247045248. Its totient is φ = 118375664.

The previous prime is 181423703. The next prime is 181423733. The reversal of 181423713 is 317324181.

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 181423713 - 2²⁴ = 164646497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (181423703) 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, 643206 + ... + 643487.

It is an arithmetic number, because the mean of its divisors is an integer number (30880656).

Almost surely, 2^181423713 is an apocalyptic number.

It is an amenable number.

181423713 is a deficient number, since it is larger than the sum of its proper divisors (65621535).

181423713 is a wasteful number, since it uses less digits than its factorization.

181423713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286743.

The product of its digits is 4032, while the sum is 30.

The square root of 181423713 is about 13469.3620116173. The cubic root of 181423713 is about 566.1063377392.

Adding to 181423713 its reverse (317324181), we get a palindrome (498747894).

The spelling of 181423713 in words is "one hundred eighty-one million, four hundred twenty-three thousand, seven hundred thirteen".