199320451 has 8 divisors (see below), whose sum is σ = 224938800. Its totient is φ = 174951840.

The previous prime is 199320413. The next prime is 199320479. The reversal of 199320451 is 154023991.

199320451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199320451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199320851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312096 + ... + 312733.

It is an arithmetic number, because the mean of its divisors is an integer number (28117350).

Almost surely, 2^199320451 is an apocalyptic number.

199320451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

199320451 is a deficient number, since it is larger than the sum of its proper divisors (25618349).

199320451 is a wasteful number, since it uses less digits than its factorization.

199320451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624869.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 199320451 is about 14118.0894953956. The cubic root of 199320451 is about 584.1404582951.

The spelling of 199320451 in words is "one hundred ninety-nine million, three hundred twenty thousand, four hundred fifty-one".