199094749 has 12 divisors (see below), whose sum is σ = 240145824. Its totient is φ = 161668872.

The previous prime is 199094737. The next prime is 199094759. The reversal of 199094749 is 947490991.

It is not a de Polignac number, because 199094749 - 2¹⁹ = 198570461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199094696 and 199094705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199094759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36867 + ... + 41920.

It is an arithmetic number, because the mean of its divisors is an integer number (20012152).

Almost surely, 2^199094749 is an apocalyptic number.

199094749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

199094749 is a deficient number, since it is larger than the sum of its proper divisors (41051075).

199094749 is an equidigital number, since it uses as much as digits as its factorization.

199094749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78832 (or 78813 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 199094749 is about 14110.0938692838. The cubic root of 199094749 is about 583.9198897510.

The spelling of 199094749 in words is "one hundred ninety-nine million, ninety-four thousand, seven hundred forty-nine".