199077239 has 2 divisors, whose sum is σ = 199077240. Its totient is φ = 199077238.

The previous prime is 199077217. The next prime is 199077253. The reversal of 199077239 is 932770991.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199077239 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 199077193 and 199077202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199077139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99538619 + 99538620.

It is an arithmetic number, because the mean of its divisors is an integer number (99538620).

Almost surely, 2^199077239 is an apocalyptic number.

199077239 is a deficient number, since it is larger than the sum of its proper divisors (1).

199077239 is an equidigital number, since it uses as much as digits as its factorization.

199077239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 199077239 is about 14109.4733778409. The cubic root of 199077239 is about 583.9027710390.

The spelling of 199077239 in words is "one hundred ninety-nine million, seventy-seven thousand, two hundred thirty-nine".