181100023 has 8 divisors (see below), whose sum is σ = 195144768. Its totient is φ = 167071584.

The previous prime is 181100011. The next prime is 181100027. The reversal of 181100023 is 320001181.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181100023 is a prime.

It is a super-3 number, since 3×181100023³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28965 + ... + 34657.

It is an arithmetic number, because the mean of its divisors is an integer number (24393096).

Almost surely, 2^181100023 is an apocalyptic number.

181100023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

181100023 is a deficient number, since it is larger than the sum of its proper divisors (14044745).

181100023 is a wasteful number, since it uses less digits than its factorization.

181100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8153.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 181100023 is about 13457.3408591742. The cubic root of 181100023 is about 565.7694614397.

The spelling of 181100023 in words is "one hundred eighty-one million, one hundred thousand, twenty-three".