125210705 has 16 divisors (see below), whose sum is σ = 155810304. Its totient is φ = 96493440.

The previous prime is 125210693. The next prime is 125210713. The reversal of 125210705 is 507012521.

It is a happy number.

It is not a de Polignac number, because 125210705 - 2⁶ = 125210641 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34382 + ... + 37848.

It is an arithmetic number, because the mean of its divisors is an integer number (9738144).

Almost surely, 2^125210705 is an apocalyptic number.

It is an amenable number.

125210705 is a deficient number, since it is larger than the sum of its proper divisors (30599599).

125210705 is a wasteful number, since it uses less digits than its factorization.

125210705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 125210705 is about 11189.7589339538. The cubic root of 125210705 is about 500.2807822931.

The spelling of 125210705 in words is "one hundred twenty-five million, two hundred ten thousand, seven hundred five".