125805767 has 2 divisors, whose sum is σ = 125805768. Its totient is φ = 125805766.

The previous prime is 125805749. The next prime is 125805769. The reversal of 125805767 is 767508521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125805767 is a prime.

Together with 125805769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125805769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62902883 + 62902884.

It is an arithmetic number, because the mean of its divisors is an integer number (62902884).

Almost surely, 2^125805767 is an apocalyptic number.

125805767 is a deficient number, since it is larger than the sum of its proper divisors (1).

125805767 is an equidigital number, since it uses as much as digits as its factorization.

125805767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 125805767 is about 11216.3169980168. The cubic root of 125805767 is about 501.0720557501.

The spelling of 125805767 in words is "one hundred twenty-five million, eight hundred five thousand, seven hundred sixty-seven".