125769545 has 16 divisors (see below), whose sum is σ = 165075840. Its totient is φ = 91228800.

The previous prime is 125769529. The next prime is 125769551. The reversal of 125769545 is 545967521.

It is a happy number.

It is not a de Polignac number, because 125769545 - 2⁴ = 125769529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125769496 and 125769505.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19700 + ... + 25290.

It is an arithmetic number, because the mean of its divisors is an integer number (10317240).

Almost surely, 2^125769545 is an apocalyptic number.

It is an amenable number.

125769545 is a deficient number, since it is larger than the sum of its proper divisors (39306295).

125769545 is a wasteful number, since it uses less digits than its factorization.

125769545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016.

The product of its digits is 378000, while the sum is 44.

The square root of 125769545 is about 11214.7021806199. The cubic root of 125769545 is about 501.0239615739.

The spelling of 125769545 in words is "one hundred twenty-five million, seven hundred sixty-nine thousand, five hundred forty-five".