125289605 has 8 divisors (see below), whose sum is σ = 171825792. Its totient is φ = 85912848.

The previous prime is 125289601. The next prime is 125289607. The reversal of 125289605 is 506982521.

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

It is not a de Polignac number, because 125289605 - 2² = 125289601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125289601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1789817 + ... + 1789886.

It is an arithmetic number, because the mean of its divisors is an integer number (21478224).

Almost surely, 2^125289605 is an apocalyptic number.

It is an amenable number.

125289605 is a deficient number, since it is larger than the sum of its proper divisors (46536187).

125289605 is an equidigital number, since it uses as much as digits as its factorization.

125289605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579715.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 125289605 is about 11193.2839238536. The cubic root of 125289605 is about 500.3858421750.

The spelling of 125289605 in words is "one hundred twenty-five million, two hundred eighty-nine thousand, six hundred five".