125510133 has 32 divisors (see below), whose sum is σ = 203489280. Its totient is φ = 67173120.

The previous prime is 125510113. The next prime is 125510171. The reversal of 125510133 is 331015521.

It is not a de Polignac number, because 125510133 - 2⁹ = 125509621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125510113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84588 + ... + 86058.

It is an arithmetic number, because the mean of its divisors is an integer number (6359040).

Almost surely, 2^125510133 is an apocalyptic number.

It is an amenable number.

125510133 is a deficient number, since it is larger than the sum of its proper divisors (77979147).

125510133 is a wasteful number, since it uses less digits than its factorization.

125510133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 125510133 is about 11203.1304999986. The cubic root of 125510133 is about 500.6792541431.

Adding to 125510133 its reverse (331015521), we get a palindrome (456525654).

The spelling of 125510133 in words is "one hundred twenty-five million, five hundred ten thousand, one hundred thirty-three".