181982002 has 16 divisors (see below), whose sum is σ = 277417152. Its totient is φ = 89521200.

The previous prime is 181981993. The next prime is 181982011. The reversal of 181982002 is 200289181.

It is a happy number.

181982002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (181981993) and next prime (181982011).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30163 + ... + 35689.

It is an arithmetic number, because the mean of its divisors is an integer number (17338572).

Almost surely, 2^181982002 is an apocalyptic number.

181982002 is a deficient number, since it is larger than the sum of its proper divisors (95435150).

181982002 is a wasteful number, since it uses less digits than its factorization.

181982002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 181982002 is about 13490.0704964800. The cubic root of 181982002 is about 566.6864296837.

The spelling of 181982002 in words is "one hundred eighty-one million, nine hundred eighty-two thousand, two".