125436605 has 8 divisors (see below), whose sum is σ = 172027392. Its totient is φ = 86013648.

The previous prime is 125436599. The next prime is 125436607. The reversal of 125436605 is 506634521.

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

It is not a de Polignac number, because 125436605 - 2⁶ = 125436541 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 (125436607) 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, 1791917 + ... + 1791986.

It is an arithmetic number, because the mean of its divisors is an integer number (21503424).

Almost surely, 2^125436605 is an apocalyptic number.

It is an amenable number.

125436605 is a deficient number, since it is larger than the sum of its proper divisors (46590787).

125436605 is an equidigital number, since it uses as much as digits as its factorization.

125436605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583915.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 125436605 is about 11199.8484364745. The cubic root of 125436605 is about 500.5814635382.

The spelling of 125436605 in words is "one hundred twenty-five million, four hundred thirty-six thousand, six hundred five".