125726305 has 8 divisors (see below), whose sum is σ = 159746472. Its totient is φ = 94664448.

The previous prime is 125726299. The next prime is 125726311. The reversal of 125726305 is 503627521.

It is an interprime number because it is at equal distance from previous prime (125726299) and next prime (125726311).

It can be written as a sum of positive squares in 4 ways, for example, as 20684304 + 105042001 = 4548^2 + 10249^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 125726305 - 2¹⁵ = 125693537 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 739482 + ... + 739651.

It is an arithmetic number, because the mean of its divisors is an integer number (19968309).

Almost surely, 2^125726305 is an apocalyptic number.

It is an amenable number.

125726305 is a deficient number, since it is larger than the sum of its proper divisors (34020167).

125726305 is a wasteful number, since it uses less digits than its factorization.

125726305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479155.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 125726305 is about 11212.7741883978. The cubic root of 125726305 is about 500.9665370749.

The spelling of 125726305 in words is "one hundred twenty-five million, seven hundred twenty-six thousand, three hundred five".