102181181 has 8 divisors (see below), whose sum is σ = 106212000. Its totient is φ = 98184240.

The previous prime is 102181159. The next prime is 102181213. The reversal of 102181181 is 181181201.

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

It is a cyclic number.

It is not a de Polignac number, because 102181181 - 2⁶ = 102181117 is a prime.

It is a super-2 number, since 2×102181181² = 20881987501109522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102181151) 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, 2231 + ... + 14468.

It is an arithmetic number, because the mean of its divisors is an integer number (13276500).

Almost surely, 2^102181181 is an apocalyptic number.

It is an amenable number.

102181181 is a deficient number, since it is larger than the sum of its proper divisors (4030819).

102181181 is a wasteful number, since it uses less digits than its factorization.

102181181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16939.

The product of its (nonzero) digits is 128, while the sum is 23.

The square root of 102181181 is about 10108.4707547680. The cubic root of 102181181 is about 467.5093553372.

The spelling of 102181181 in words is "one hundred two million, one hundred eighty-one thousand, one hundred eighty-one".