125265311 has 2 divisors, whose sum is σ = 125265312. Its totient is φ = 125265310.

The previous prime is 125265281. The next prime is 125265317. The reversal of 125265311 is 113562521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125265311 - 2⁶ = 125265247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125265317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62632655 + 62632656.

It is an arithmetic number, because the mean of its divisors is an integer number (62632656).

Almost surely, 2^125265311 is an apocalyptic number.

125265311 is a deficient number, since it is larger than the sum of its proper divisors (1).

125265311 is an equidigital number, since it uses as much as digits as its factorization.

125265311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 125265311 is about 11192.1986669287. The cubic root of 125265311 is about 500.3534980194.

The spelling of 125265311 in words is "one hundred twenty-five million, two hundred sixty-five thousand, three hundred eleven".