102181342 has 4 divisors (see below), whose sum is σ = 153272016. Its totient is φ = 51090670.

The previous prime is 102181319. The next prime is 102181351. The reversal of 102181342 is 243181201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25545334 + ... + 25545337.

It is an arithmetic number, because the mean of its divisors is an integer number (38318004).

Almost surely, 2^102181342 is an apocalyptic number.

102181342 is a deficient number, since it is larger than the sum of its proper divisors (51090674).

102181342 is an equidigital number, since it uses as much as digits as its factorization.

102181342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51090673.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 102181342 is about 10108.4787183829. The cubic root of 102181342 is about 467.5096008781.

The spelling of 102181342 in words is "one hundred two million, one hundred eighty-one thousand, three hundred forty-two".