125280787 has 2 divisors, whose sum is σ = 125280788. Its totient is φ = 125280786.

The previous prime is 125280751. The next prime is 125280797. The reversal of 125280787 is 787082521.

It is a strong prime.

It is an emirp because it is prime and its reverse (787082521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125280787 is a prime.

It is not a weakly prime, because it can be changed into another prime (125280797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62640393 + 62640394.

It is an arithmetic number, because the mean of its divisors is an integer number (62640394).

Almost surely, 2^125280787 is an apocalyptic number.

125280787 is a deficient number, since it is larger than the sum of its proper divisors (1).

125280787 is an equidigital number, since it uses as much as digits as its factorization.

125280787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 125280787 is about 11192.8900200082. The cubic root of 125280787 is about 500.3741026912.

The spelling of 125280787 in words is "one hundred twenty-five million, two hundred eighty thousand, seven hundred eighty-seven".