125787127 has 2 divisors, whose sum is σ = 125787128. Its totient is φ = 125787126.

The previous prime is 125787113. The next prime is 125787143. The reversal of 125787127 is 721787521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125787127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125787127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125787107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62893563 + 62893564.

It is an arithmetic number, because the mean of its divisors is an integer number (62893564).

Almost surely, 2^125787127 is an apocalyptic number.

125787127 is a deficient number, since it is larger than the sum of its proper divisors (1).

125787127 is an equidigital number, since it uses as much as digits as its factorization.

125787127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54880, while the sum is 40.

The square root of 125787127 is about 11215.4860349429. The cubic root of 125787127 is about 501.0473074293.

The spelling of 125787127 in words is "one hundred twenty-five million, seven hundred eighty-seven thousand, one hundred twenty-seven".