192139117 has 4 divisors (see below), whose sum is σ = 203441436. Its totient is φ = 180836800.

The previous prime is 192139097. The next prime is 192139127. The reversal of 192139117 is 711931291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 96314596 + 95824521 = 9814^2 + 9789^2 .

It is a cyclic number.

It is not a de Polignac number, because 192139117 - 2¹¹ = 192137069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192139127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5651134 + ... + 5651167.

It is an arithmetic number, because the mean of its divisors is an integer number (50860359).

Almost surely, 2^192139117 is an apocalyptic number.

192139117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

192139117 is a deficient number, since it is larger than the sum of its proper divisors (11302319).

192139117 is a wasteful number, since it uses less digits than its factorization.

192139117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11302318.

The product of its digits is 3402, while the sum is 34.

The square root of 192139117 is about 13861.4255038939. The cubic root of 192139117 is about 577.0391288129.

The spelling of 192139117 in words is "one hundred ninety-two million, one hundred thirty-nine thousand, one hundred seventeen".