190838225 has 12 divisors (see below), whose sum is σ = 237456156. Its totient is φ = 152143680.

The previous prime is 190838191. The next prime is 190838233. The reversal of 190838225 is 522838091.

It can be written as a sum of positive squares in 6 ways, for example, as 18939904 + 171898321 = 4352^2 + 13111^2 .

It is a de Polignac number, because none of the positive numbers 2^k-190838225 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 5702 + ... + 20351.

It is an arithmetic number, because the mean of its divisors is an integer number (19788013).

Almost surely, 2^190838225 is an apocalyptic number.

It is an amenable number.

190838225 is a deficient number, since it is larger than the sum of its proper divisors (46617931).

190838225 is a wasteful number, since it uses less digits than its factorization.

190838225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26356 (or 26351 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 190838225 is about 13814.4209071535. The cubic root of 190838225 is about 575.7338833482.

The spelling of 190838225 in words is "one hundred ninety million, eight hundred thirty-eight thousand, two hundred twenty-five".