125782917 has 8 divisors (see below), whose sum is σ = 180611424. Its totient is φ = 77404848.

The previous prime is 125782901. The next prime is 125782933. The reversal of 125782917 is 719287521.

It is an interprime number because it is at equal distance from previous prime (125782901) and next prime (125782933).

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

It is not a de Polignac number, because 125782917 - 2⁴ = 125782901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125782967) 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, 1612563 + ... + 1612640.

It is an arithmetic number, because the mean of its divisors is an integer number (22576428).

Almost surely, 2^125782917 is an apocalyptic number.

It is an amenable number.

125782917 is a deficient number, since it is larger than the sum of its proper divisors (54828507).

125782917 is a wasteful number, since it uses less digits than its factorization.

125782917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225219.

The product of its digits is 70560, while the sum is 42.

The square root of 125782917 is about 11215.2983464552. The cubic root of 125782917 is about 501.0417174755.

The spelling of 125782917 in words is "one hundred twenty-five million, seven hundred eighty-two thousand, nine hundred seventeen".