199741955 has 32 divisors (see below), whose sum is σ = 283409280. Its totient is φ = 132295680.

The previous prime is 199741951. The next prime is 199741967. The reversal of 199741955 is 559147991.

It is not a de Polignac number, because 199741955 - 2² = 199741951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199741951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155777 + ... + 157053.

It is an arithmetic number, because the mean of its divisors is an integer number (8856540).

Almost surely, 2^199741955 is an apocalyptic number.

199741955 is a deficient number, since it is larger than the sum of its proper divisors (83667325).

199741955 is a wasteful number, since it uses less digits than its factorization.

199741955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its digits is 510300, while the sum is 50.

The square root of 199741955 is about 14133.0094105962. The cubic root of 199741955 is about 584.5519300113.

The spelling of 199741955 in words is "one hundred ninety-nine million, seven hundred forty-one thousand, nine hundred fifty-five".