199513253 has 4 divisors (see below), whose sum is σ = 203277708. Its totient is φ = 195748800.

The previous prime is 199513231. The next prime is 199513267. The reversal of 199513253 is 352315991.

It is a happy number.

199513253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352315991 = 3083 ⋅114277.

It can be written as a sum of positive squares in 2 ways, for example, as 147428164 + 52085089 = 12142^2 + 7217^2 .

It is a cyclic number.

It is not a de Polignac number, because 199513253 - 2⁸ = 199512997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199513553) 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, 1882148 + ... + 1882253.

It is an arithmetic number, because the mean of its divisors is an integer number (50819427).

Almost surely, 2^199513253 is an apocalyptic number.

It is an amenable number.

199513253 is a deficient number, since it is larger than the sum of its proper divisors (3764455).

199513253 is an equidigital number, since it uses as much as digits as its factorization.

199513253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764454.

The product of its digits is 36450, while the sum is 38.

The square root of 199513253 is about 14124.9160351487. The cubic root of 199513253 is about 584.3287432973.

The spelling of 199513253 in words is "one hundred ninety-nine million, five hundred thirteen thousand, two hundred fifty-three".