125070865 has 4 divisors (see below), whose sum is σ = 150085044. Its totient is φ = 100056688.

The previous prime is 125070839. The next prime is 125070893. The reversal of 125070865 is 568070521.

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 24088464 + 100982401 = 4908^2 + 10049^2 .

It is a cyclic number.

It is not a de Polignac number, because 125070865 - 2⁹ = 125070353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125070865.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12507082 + ... + 12507091.

It is an arithmetic number, because the mean of its divisors is an integer number (37521261).

Almost surely, 2^125070865 is an apocalyptic number.

It is an amenable number.

125070865 is a deficient number, since it is larger than the sum of its proper divisors (25014179).

125070865 is an equidigital number, since it uses as much as digits as its factorization.

125070865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25014178.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 125070865 is about 11183.5086176030. The cubic root of 125070865 is about 500.0944688168.

The spelling of 125070865 in words is "one hundred twenty-five million, seventy thousand, eight hundred sixty-five".