199147550 has 48 divisors (see below), whose sum is σ = 445626240. Its totient is φ = 64683360.

The previous prime is 199147541. The next prime is 199147573. The reversal of 199147550 is 55741991.

It is a junction number, because it is equal to n+sod(n) for n = 199147498 and 199147507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8324 + ... + 21623.

It is an arithmetic number, because the mean of its divisors is an integer number (9283880).

Almost surely, 2^199147550 is an apocalyptic number.

199147550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199147550 is an abundant number, since it is smaller than the sum of its proper divisors (246478690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199147550 is a wasteful number, since it uses less digits than its factorization.

199147550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29985 (or 29980 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 199147550 is about 14111.9647817021. The cubic root of 199147550 is about 583.9715047553.

The spelling of 199147550 in words is "one hundred ninety-nine million, one hundred forty-seven thousand, five hundred fifty".