181802142 has 24 divisors (see below), whose sum is σ = 394324320. Its totient is φ = 60536160.

The previous prime is 181802123. The next prime is 181802161. The reversal of 181802142 is 241208181.

181802142 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 (181802123) and next prime (181802161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13842 + ... + 23562.

It is an arithmetic number, because the mean of its divisors is an integer number (16430180).

Almost surely, 2^181802142 is an apocalyptic number.

181802142 is an abundant number, since it is smaller than the sum of its proper divisors (212522178).

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

181802142 is a wasteful number, since it uses less digits than its factorization.

181802142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10768 (or 10765 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 181802142 is about 13483.4024637700. The cubic root of 181802142 is about 566.4996752846.

The spelling of 181802142 in words is "one hundred eighty-one million, eight hundred two thousand, one hundred forty-two".