125669573 has 4 divisors (see below), whose sum is σ = 127391148. Its totient is φ = 123948000.

The previous prime is 125669563. The next prime is 125669581. The reversal of 125669573 is 375966521.

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 97970404 + 27699169 = 9898^2 + 5263^2 .

It is a cyclic number.

It is not a de Polignac number, because 125669573 - 2²⁰ = 124620997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125669563) 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, 860678 + ... + 860823.

It is an arithmetic number, because the mean of its divisors is an integer number (31847787).

Almost surely, 2^125669573 is an apocalyptic number.

It is an amenable number.

125669573 is a deficient number, since it is larger than the sum of its proper divisors (1721575).

125669573 is an equidigital number, since it uses as much as digits as its factorization.

125669573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721574.

The product of its digits is 340200, while the sum is 44.

The square root of 125669573 is about 11210.2441097418. The cubic root of 125669573 is about 500.8911746717.

The spelling of 125669573 in words is "one hundred twenty-five million, six hundred sixty-nine thousand, five hundred seventy-three".