199257125 has 8 divisors (see below), whose sum is σ = 248673048. Its totient is φ = 159405600.

The previous prime is 199257083. The next prime is 199257133. The reversal of 199257125 is 521752991.

It can be written as a sum of positive squares in 4 ways, for example, as 54848836 + 144408289 = 7406^2 + 12017^2 .

It is not a de Polignac number, because 199257125 - 2⁶ = 199257061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796904 + ... + 797153.

It is an arithmetic number, because the mean of its divisors is an integer number (31084131).

Almost surely, 2^199257125 is an apocalyptic number.

It is an amenable number.

199257125 is a deficient number, since it is larger than the sum of its proper divisors (49415923).

199257125 is an equidigital number, since it uses as much as digits as its factorization.

199257125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594072 (or 1594062 counting only the distinct ones).

The product of its digits is 56700, while the sum is 41.

The square root of 199257125 is about 14115.8465916855. The cubic root of 199257125 is about 584.0785894190.

The spelling of 199257125 in words is "one hundred ninety-nine million, two hundred fifty-seven thousand, one hundred twenty-five".