125765705 has 16 divisors (see below), whose sum is σ = 164145744. Its totient is φ = 91948800.

The previous prime is 125765699. The next prime is 125765719. The reversal of 125765705 is 507567521.

It can be written as a sum of positive squares in 8 ways, for example, as 9535744 + 116229961 = 3088^2 + 10781^2 .

It is not a de Polignac number, because 125765705 - 2²⁰ = 124717129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3014 + ... + 16143.

It is an arithmetic number, because the mean of its divisors is an integer number (10259109).

Almost surely, 2^125765705 is an apocalyptic number.

It is an amenable number.

125765705 is a deficient number, since it is larger than the sum of its proper divisors (38380039).

125765705 is a wasteful number, since it uses less digits than its factorization.

125765705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19276.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 125765705 is about 11214.5309754800. The cubic root of 125765705 is about 501.0188624285.

It can be divided in two parts, 12576 and 5705, that added together give a palindrome (18281).

The spelling of 125765705 in words is "one hundred twenty-five million, seven hundred sixty-five thousand, seven hundred five".