181049902 has 8 divisors (see below), whose sum is σ = 296263512. Its totient is φ = 82295400.

The previous prime is 181049887. The next prime is 181049933. The reversal of 181049902 is 209940181.

181049902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4114749 + ... + 4114792.

It is an arithmetic number, because the mean of its divisors is an integer number (37032939).

Almost surely, 2^181049902 is an apocalyptic number.

181049902 is a deficient number, since it is larger than the sum of its proper divisors (115213610).

181049902 is a wasteful number, since it uses less digits than its factorization.

181049902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8229554.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 181049902 is about 13455.4785124870. The cubic root of 181049902 is about 565.7172627576.

The spelling of 181049902 in words is "one hundred eighty-one million, forty-nine thousand, nine hundred two".