125605965 has 8 divisors (see below), whose sum is σ = 200969568. Its totient is φ = 66989840.

The previous prime is 125605933. The next prime is 125605981. The reversal of 125605965 is 569506521.

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

It is not a de Polignac number, because 125605965 - 2⁵ = 125605933 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4186851 + ... + 4186880.

It is an arithmetic number, because the mean of its divisors is an integer number (25121196).

Almost surely, 2^125605965 is an apocalyptic number.

125605965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125605965 is a deficient number, since it is larger than the sum of its proper divisors (75363603).

125605965 is an equidigital number, since it uses as much as digits as its factorization.

125605965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373739.

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 125605965 is about 11207.4067027123. The cubic root of 125605965 is about 500.8066512610.

The spelling of 125605965 in words is "one hundred twenty-five million, six hundred five thousand, nine hundred sixty-five".