125306791 has 2 divisors, whose sum is σ = 125306792. Its totient is φ = 125306790.

The previous prime is 125306789. The next prime is 125306801. The reversal of 125306791 is 197603521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125306791 - 2¹ = 125306789 is a prime.

Together with 125306789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125306771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62653395 + 62653396.

It is an arithmetic number, because the mean of its divisors is an integer number (62653396).

Almost surely, 2^125306791 is an apocalyptic number.

125306791 is a deficient number, since it is larger than the sum of its proper divisors (1).

125306791 is an equidigital number, since it uses as much as digits as its factorization.

125306791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 125306791 is about 11194.0515900187. The cubic root of 125306791 is about 500.4087204708.

It can be divided in two parts, 12530 and 6791, that added together give a square (19321 = 139²).

The spelling of 125306791 in words is "one hundred twenty-five million, three hundred six thousand, seven hundred ninety-one".