125133185 has 4 divisors (see below), whose sum is σ = 150159828. Its totient is φ = 100106544.

The previous prime is 125133181. The next prime is 125133233. The reversal of 125133185 is 581331521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89718784 + 35414401 = 9472^2 + 5951^2 .

It is a cyclic number.

It is not a de Polignac number, because 125133185 - 2² = 125133181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125133181) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12513314 + ... + 12513323.

It is an arithmetic number, because the mean of its divisors is an integer number (37539957).

Almost surely, 2^125133185 is an apocalyptic number.

It is an amenable number.

125133185 is a deficient number, since it is larger than the sum of its proper divisors (25026643).

125133185 is an equidigital number, since it uses as much as digits as its factorization.

125133185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25026642.

The product of its digits is 3600, while the sum is 29.

The square root of 125133185 is about 11186.2945160585. The cubic root of 125133185 is about 500.1775169680.

The spelling of 125133185 in words is "one hundred twenty-five million, one hundred thirty-three thousand, one hundred eighty-five".