199149513 has 4 divisors (see below), whose sum is σ = 265532688. Its totient is φ = 132766340.

The previous prime is 199149497. The next prime is 199149523. The reversal of 199149513 is 315941991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199149513 - 2⁴ = 199149497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199149523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33191583 + ... + 33191588.

It is an arithmetic number, because the mean of its divisors is an integer number (66383172).

Almost surely, 2^199149513 is an apocalyptic number.

It is an amenable number.

199149513 is a deficient number, since it is larger than the sum of its proper divisors (66383175).

199149513 is an equidigital number, since it uses as much as digits as its factorization.

199149513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66383174.

The product of its digits is 43740, while the sum is 42.

The square root of 199149513 is about 14112.0343324412. The cubic root of 199149513 is about 583.9734234872.

The spelling of 199149513 in words is "one hundred ninety-nine million, one hundred forty-nine thousand, five hundred thirteen".