125163529 has 4 divisors (see below), whose sum is σ = 128216340. Its totient is φ = 122110720.

The previous prime is 125163527. The next prime is 125163569. The reversal of 125163529 is 925361521.

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 70107129 + 55056400 = 8373^2 + 7420^2 .

It is a cyclic number.

It is not a de Polignac number, because 125163529 - 2¹ = 125163527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125163494 and 125163503.

It is not an unprimeable number, because it can be changed into a prime (125163527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526344 + ... + 1526425.

It is an arithmetic number, because the mean of its divisors is an integer number (32054085).

Almost surely, 2^125163529 is an apocalyptic number.

It is an amenable number.

125163529 is a deficient number, since it is larger than the sum of its proper divisors (3052811).

125163529 is an equidigital number, since it uses as much as digits as its factorization.

125163529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052810.

The product of its digits is 16200, while the sum is 34.

The square root of 125163529 is about 11187.6507364147. The cubic root of 125163529 is about 500.2179436540.

The spelling of 125163529 in words is "one hundred twenty-five million, one hundred sixty-three thousand, five hundred twenty-nine".