125978747 has 8 divisors (see below), whose sum is σ = 131578800. Its totient is φ = 120494304.

The previous prime is 125978731. The next prime is 125978767. The reversal of 125978747 is 747879521.

It is a happy number.

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 125978747 - 2⁴ = 125978731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125978695 and 125978704.

It is not an unprimeable number, because it can be changed into a prime (125978707) 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, 26672 + ... + 31037.

It is an arithmetic number, because the mean of its divisors is an integer number (16447350).

Almost surely, 2^125978747 is an apocalyptic number.

125978747 is a deficient number, since it is larger than the sum of its proper divisors (5600053).

125978747 is an equidigital number, since it uses as much as digits as its factorization.

125978747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57805.

The product of its digits is 987840, while the sum is 50.

The square root of 125978747 is about 11224.0254365357. The cubic root of 125978747 is about 501.3016047102.

The spelling of 125978747 in words is "one hundred twenty-five million, nine hundred seventy-eight thousand, seven hundred forty-seven".