209125094 has 8 divisors (see below), whose sum is σ = 313800480. Its totient is φ = 104524936.

The previous prime is 209125069. The next prime is 209125129. The reversal of 209125094 is 490521902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 209125094.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11249 + ... + 23340.

It is an arithmetic number, because the mean of its divisors is an integer number (39225060).

Almost surely, 2^209125094 is an apocalyptic number.

209125094 is a deficient number, since it is larger than the sum of its proper divisors (104675386).

209125094 is a wasteful number, since it uses less digits than its factorization.

209125094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37614.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 209125094 is about 14461.1581140654. The cubic root of 209125094 is about 593.5655902435.

Adding to 209125094 its reverse (490521902), we get a palindrome (699646996).

The spelling of 209125094 in words is "two hundred nine million, one hundred twenty-five thousand, ninety-four".