125808745 has 8 divisors (see below), whose sum is σ = 151239240. Its totient is φ = 100467840.

The previous prime is 125808743. The next prime is 125808751. The reversal of 125808745 is 547808521.

It can be written as a sum of positive squares in 4 ways, for example, as 26666896 + 99141849 = 5164^2 + 9957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125808745 - 2¹ = 125808743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125808698 and 125808707.

It is not an unprimeable number, because it can be changed into a prime (125808743) 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 7 ways as a sum of consecutive naturals, for example, 19266 + ... + 24955.

It is an arithmetic number, because the mean of its divisors is an integer number (18904905).

Almost surely, 2^125808745 is an apocalyptic number.

It is an amenable number.

125808745 is a deficient number, since it is larger than the sum of its proper divisors (25430495).

125808745 is an equidigital number, since it uses as much as digits as its factorization.

125808745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44795.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 125808745 is about 11216.4497502552. The cubic root of 125808745 is about 501.0760094131.

The spelling of 125808745 in words is "one hundred twenty-five million, eight hundred eight thousand, seven hundred forty-five".