199214131 has 2 divisors, whose sum is σ = 199214132. Its totient is φ = 199214130.

The previous prime is 199214123. The next prime is 199214159. The reversal of 199214131 is 131412991.

It is a weak prime.

It is an emirp because it is prime and its reverse (131412991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199214131 - 2³ = 199214123 is a prime.

It is a super-2 number, since 2×199214131² = 79372539980170322, which contains 22 as substring.

It is equal to p_11037766 and since 199214131 and 11037766 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 199214093 and 199214102.

It is not a weakly prime, because it can be changed into another prime (199214161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99607065 + 99607066.

It is an arithmetic number, because the mean of its divisors is an integer number (99607066).

Almost surely, 2^199214131 is an apocalyptic number.

199214131 is a deficient number, since it is larger than the sum of its proper divisors (1).

199214131 is an equidigital number, since it uses as much as digits as its factorization.

199214131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 199214131 is about 14114.3236111406. The cubic root of 199214131 is about 584.0365772346.

The spelling of 199214131 in words is "one hundred ninety-nine million, two hundred fourteen thousand, one hundred thirty-one".