125909387 has 8 divisors (see below), whose sum is σ = 131118240. Its totient is φ = 120758400.

The previous prime is 125909369. The next prime is 125909393. The reversal of 125909387 is 783909521.

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

It is a cyclic number.

It is not a de Polignac number, because 125909387 - 2¹⁴ = 125893003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125909347) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9998 + ... + 18755.

It is an arithmetic number, because the mean of its divisors is an integer number (16389780).

Almost surely, 2^125909387 is an apocalyptic number.

125909387 is a deficient number, since it is larger than the sum of its proper divisors (5208853).

125909387 is a wasteful number, since it uses less digits than its factorization.

125909387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28933.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 125909387 is about 11220.9352105785. The cubic root of 125909387 is about 501.2095874368.

The spelling of 125909387 in words is "one hundred twenty-five million, nine hundred nine thousand, three hundred eighty-seven".