199213399 has 8 divisors (see below), whose sum is σ = 248370048. Its totient is φ = 155231160.

The previous prime is 199213381. The next prime is 199213457. The reversal of 199213399 is 993312991.

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

It is not a de Polignac number, because 199213399 - 2¹¹ = 199211351 is a prime.

It is a super-2 number, since 2×199213399² = 79371956682266402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199213199) 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, 1293517 + ... + 1293670.

It is an arithmetic number, because the mean of its divisors is an integer number (31046256).

Almost surely, 2^199213399 is an apocalyptic number.

199213399 is a deficient number, since it is larger than the sum of its proper divisors (49156649).

199213399 is a wasteful number, since it uses less digits than its factorization.

199213399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587205.

The product of its digits is 118098, while the sum is 46.

The square root of 199213399 is about 14114.2976800123. The cubic root of 199213399 is about 584.0358618983.

The spelling of 199213399 in words is "one hundred ninety-nine million, two hundred thirteen thousand, three hundred ninety-nine".