199189485 has 24 divisors (see below), whose sum is σ = 376650144. Its totient is φ = 96576480.

The previous prime is 199189469. The next prime is 199189513. The reversal of 199189485 is 584981991.

It is not a de Polignac number, because 199189485 - 2⁴ = 199189469 is a prime.

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, 200707 + ... + 201696.

It is an arithmetic number, because the mean of its divisors is an integer number (15693756).

Almost surely, 2^199189485 is an apocalyptic number.

199189485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199189485 is a deficient number, since it is larger than the sum of its proper divisors (177460659).

199189485 is a wasteful number, since it uses less digits than its factorization.

199189485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402425 (or 402422 counting only the distinct ones).

The product of its digits is 933120, while the sum is 54.

The square root of 199189485 is about 14113.4504994349. The cubic root of 199189485 is about 584.0124913276.

It can be divided in two parts, 19918 and 9485, that added together give a triangular number (29403 = T₂₄₂).

The spelling of 199189485 in words is "one hundred ninety-nine million, one hundred eighty-nine thousand, four hundred eighty-five".