192872117 has 2 divisors, whose sum is σ = 192872118. Its totient is φ = 192872116.

The previous prime is 192872093. The next prime is 192872131. The reversal of 192872117 is 711278291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177395761 + 15476356 = 13319^2 + 3934^2 .

It is a cyclic number.

It is not a de Polignac number, because 192872117 - 2²² = 188677813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192872137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96436058 + 96436059.

It is an arithmetic number, because the mean of its divisors is an integer number (96436059).

Almost surely, 2^192872117 is an apocalyptic number.

It is an amenable number.

192872117 is a deficient number, since it is larger than the sum of its proper divisors (1).

192872117 is an equidigital number, since it uses as much as digits as its factorization.

192872117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 38.

The square root of 192872117 is about 13887.8406168850. The cubic root of 192872117 is about 577.7719883446.

The spelling of 192872117 in words is "one hundred ninety-two million, eight hundred seventy-two thousand, one hundred seventeen".