199232641 has 4 divisors (see below), whose sum is σ = 201471300. Its totient is φ = 196993984.

The previous prime is 199232633. The next prime is 199232669. The reversal of 199232641 is 146232991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146232991 = 37 ⋅3952243.

It can be written as a sum of positive squares in 2 ways, for example, as 92544400 + 106688241 = 9620^2 + 10329^2 .

It is a cyclic number.

It is not a de Polignac number, because 199232641 - 2³ = 199232633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199232641.

It is not an unprimeable number, because it can be changed into a prime (199232611) 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, 1119196 + ... + 1119373.

It is an arithmetic number, because the mean of its divisors is an integer number (50367825).

Almost surely, 2^199232641 is an apocalyptic number.

It is an amenable number.

199232641 is a deficient number, since it is larger than the sum of its proper divisors (2238659).

199232641 is an equidigital number, since it uses as much as digits as its factorization.

199232641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238658.

The product of its digits is 23328, while the sum is 37.

The square root of 199232641 is about 14114.9793127727. The cubic root of 199232641 is about 584.0546652792.

The spelling of 199232641 in words is "one hundred ninety-nine million, two hundred thirty-two thousand, six hundred forty-one".