125017273 has 4 divisors (see below), whose sum is σ = 125074548. Its totient is φ = 124960000.

The previous prime is 125017247. The next prime is 125017307. The reversal of 125017273 is 372710521.

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 49449024 + 75568249 = 7032^2 + 8693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125017273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123017273) 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 3 ways as a sum of consecutive naturals, for example, 25228 + ... + 29773.

It is an arithmetic number, because the mean of its divisors is an integer number (31268637).

Almost surely, 2^125017273 is an apocalyptic number.

It is an amenable number.

125017273 is a deficient number, since it is larger than the sum of its proper divisors (57275).

125017273 is an equidigital number, since it uses as much as digits as its factorization.

125017273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57274.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 125017273 is about 11181.1123328585. The cubic root of 125017273 is about 500.0230296059.

Adding to 125017273 its reverse (372710521), we get a palindrome (497727794).

The spelling of 125017273 in words is "one hundred twenty-five million, seventeen thousand, two hundred seventy-three".