181984023 has 16 divisors (see below), whose sum is σ = 290345440. Its totient is φ = 111989952.

The previous prime is 181984009. The next prime is 181984039. The reversal of 181984023 is 320489181.

It is not a de Polignac number, because 181984023 - 2⁹ = 181983511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181984003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258886 + ... + 259587.

It is an arithmetic number, because the mean of its divisors is an integer number (18146590).

Almost surely, 2^181984023 is an apocalyptic number.

181984023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

181984023 is a deficient number, since it is larger than the sum of its proper divisors (108361417).

181984023 is a wasteful number, since it uses less digits than its factorization.

181984023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518495 (or 518489 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 181984023 is about 13490.1454032193. The cubic root of 181984023 is about 566.6885274535.

The spelling of 181984023 in words is "one hundred eighty-one million, nine hundred eighty-four thousand, twenty-three".