199032247 has 2 divisors, whose sum is σ = 199032248. Its totient is φ = 199032246.

The previous prime is 199032199. The next prime is 199032283. The reversal of 199032247 is 742230991.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199032247 is a prime.

It is a super-2 number, since 2×199032247² = 79227670691738018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199036247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99516123 + 99516124.

It is an arithmetic number, because the mean of its divisors is an integer number (99516124).

Almost surely, 2^199032247 is an apocalyptic number.

199032247 is a deficient number, since it is larger than the sum of its proper divisors (1).

199032247 is an equidigital number, since it uses as much as digits as its factorization.

199032247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 199032247 is about 14107.8788979775. The cubic root of 199032247 is about 583.8587798509.

The spelling of 199032247 in words is "one hundred ninety-nine million, thirty-two thousand, two hundred forty-seven".