199055147 has 2 divisors, whose sum is σ = 199055148. Its totient is φ = 199055146.

The previous prime is 199055107. The next prime is 199055161. The reversal of 199055147 is 741550991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199055147 - 2⁶ = 199055083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199055107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99527573 + 99527574.

It is an arithmetic number, because the mean of its divisors is an integer number (99527574).

Almost surely, 2^199055147 is an apocalyptic number.

199055147 is a deficient number, since it is larger than the sum of its proper divisors (1).

199055147 is an equidigital number, since it uses as much as digits as its factorization.

199055147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 199055147 is about 14108.6904778580. The cubic root of 199055147 is about 583.8811712866.

It can be divided in two parts, 19905 and 5147, that added together give a palindrome (25052).

The spelling of 199055147 in words is "one hundred ninety-nine million, fifty-five thousand, one hundred forty-seven".