199134125 has 16 divisors (see below), whose sum is σ = 250995888. Its totient is φ = 157720000.

The previous prime is 199134109. The next prime is 199134127. The reversal of 199134125 is 521431991.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 14092516 + 185041609 = 3754^2 + 13603^2 .

It is not a de Polignac number, because 199134125 - 2⁴ = 199134109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199134127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4739 + ... + 20511.

It is an arithmetic number, because the mean of its divisors is an integer number (15687243).

Almost surely, 2^199134125 is an apocalyptic number.

It is an amenable number.

199134125 is a deficient number, since it is larger than the sum of its proper divisors (51861763).

199134125 is a wasteful number, since it uses less digits than its factorization.

199134125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889 (or 15879 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 199134125 is about 14111.4891134848. The cubic root of 199134125 is about 583.9583821675.

The spelling of 199134125 in words is "one hundred ninety-nine million, one hundred thirty-four thousand, one hundred twenty-five".