199829501 has 2 divisors, whose sum is σ = 199829502. Its totient is φ = 199829500.

The previous prime is 199829453. The next prime is 199829507. The reversal of 199829501 is 105928991.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111281401 + 88548100 = 10549^2 + 9410^2 .

It is a cyclic number.

It is not a de Polignac number, because 199829501 - 2⁶ = 199829437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199829507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99914750 + 99914751.

It is an arithmetic number, because the mean of its divisors is an integer number (99914751).

Almost surely, 2^199829501 is an apocalyptic number.

It is an amenable number.

199829501 is a deficient number, since it is larger than the sum of its proper divisors (1).

199829501 is an equidigital number, since it uses as much as digits as its factorization.

199829501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 199829501 is about 14136.1062885082. The cubic root of 199829501 is about 584.6373196973.

The spelling of 199829501 in words is "one hundred ninety-nine million, eight hundred twenty-nine thousand, five hundred one".