125232609 has 8 divisors (see below), whose sum is σ = 167239072. Its totient is φ = 83357280.

The previous prime is 125232559. The next prime is 125232619. The reversal of 125232609 is 906232521.

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

It is not a de Polignac number, because 125232609 - 2¹³ = 125224417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125232619) by changing a digit.

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, 30532 + ... + 34389.

It is an arithmetic number, because the mean of its divisors is an integer number (20904884).

Almost surely, 2^125232609 is an apocalyptic number.

It is an amenable number.

125232609 is a deficient number, since it is larger than the sum of its proper divisors (42006463).

125232609 is an equidigital number, since it uses as much as digits as its factorization.

125232609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65567.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 125232609 is about 11190.7376432477. The cubic root of 125232609 is about 500.3099531517.

The spelling of 125232609 in words is "one hundred twenty-five million, two hundred thirty-two thousand, six hundred nine".