125105711 has 2 divisors, whose sum is σ = 125105712. Its totient is φ = 125105710.

The previous prime is 125105707. The next prime is 125105723. The reversal of 125105711 is 117501521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125105711 - 2² = 125105707 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125105741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62552855 + 62552856.

It is an arithmetic number, because the mean of its divisors is an integer number (62552856).

Almost surely, 2^125105711 is an apocalyptic number.

125105711 is a deficient number, since it is larger than the sum of its proper divisors (1).

125105711 is an equidigital number, since it uses as much as digits as its factorization.

125105711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 350, while the sum is 23.

The square root of 125105711 is about 11185.0664280549. The cubic root of 125105711 is about 500.1409082860.

The spelling of 125105711 in words is "one hundred twenty-five million, one hundred five thousand, seven hundred eleven".