192140681 has 8 divisors (see below), whose sum is σ = 204664320. Its totient is φ = 179752768.

The previous prime is 192140677. The next prime is 192140687. The reversal of 192140681 is 186041291.

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 192140681 - 2² = 192140677 is a prime.

It is a super-2 number, since 2×192140681² = 73836082590287522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192140687) 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, 31001 + ... + 36678.

It is an arithmetic number, because the mean of its divisors is an integer number (25583040).

Almost surely, 2^192140681 is an apocalyptic number.

It is an amenable number.

192140681 is a deficient number, since it is larger than the sum of its proper divisors (12523639).

192140681 is a wasteful number, since it uses less digits than its factorization.

192140681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67863.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 192140681 is about 13861.4819193332. The cubic root of 192140681 is about 577.0406944957.

The spelling of 192140681 in words is "one hundred ninety-two million, one hundred forty thousand, six hundred eighty-one".