181023474 has 16 divisors (see below), whose sum is σ = 362355840. Its totient is φ = 60289680.

The previous prime is 181023473. The next prime is 181023509. The reversal of 181023474 is 474320181.

181023474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (181023473) 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, 4869 + ... + 19640.

It is an arithmetic number, because the mean of its divisors is an integer number (22647240).

Almost surely, 2^181023474 is an apocalyptic number.

181023474 is an abundant number, since it is smaller than the sum of its proper divisors (181332366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

181023474 is a wasteful number, since it uses less digits than its factorization.

181023474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25745.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 181023474 is about 13454.4964231293. The cubic root of 181023474 is about 565.6897353500.

The spelling of 181023474 in words is "one hundred eighty-one million, twenty-three thousand, four hundred seventy-four".