125291273 has 4 divisors (see below), whose sum is σ = 127161360. Its totient is φ = 123421188.

The previous prime is 125291267. The next prime is 125291291. The reversal of 125291273 is 372192521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125291273 - 2⁸ = 125291017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125291233) 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, 934943 + ... + 935076.

It is an arithmetic number, because the mean of its divisors is an integer number (31790340).

Almost surely, 2^125291273 is an apocalyptic number.

It is an amenable number.

125291273 is a deficient number, since it is larger than the sum of its proper divisors (1870087).

125291273 is an equidigital number, since it uses as much as digits as its factorization.

125291273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870086.

The product of its digits is 7560, while the sum is 32.

The square root of 125291273 is about 11193.3584325706. The cubic root of 125291273 is about 500.3880627367.

The spelling of 125291273 in words is "one hundred twenty-five million, two hundred ninety-one thousand, two hundred seventy-three".