125777647 has 2 divisors, whose sum is σ = 125777648. Its totient is φ = 125777646.

The previous prime is 125777629. The next prime is 125777651. The reversal of 125777647 is 746777521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125777647 - 2¹¹ = 125775599 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125777597 and 125777606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125777677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62888823 + 62888824.

It is an arithmetic number, because the mean of its divisors is an integer number (62888824).

Almost surely, 2^125777647 is an apocalyptic number.

125777647 is a deficient number, since it is larger than the sum of its proper divisors (1).

125777647 is an equidigital number, since it uses as much as digits as its factorization.

125777647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576240, while the sum is 46.

The square root of 125777647 is about 11215.0633970567. The cubic root of 125777647 is about 501.0347198990.

The spelling of 125777647 in words is "one hundred twenty-five million, seven hundred seventy-seven thousand, six hundred forty-seven".