125166911 has 2 divisors, whose sum is σ = 125166912. Its totient is φ = 125166910.

The previous prime is 125166883. The next prime is 125166919. The reversal of 125166911 is 119661521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125166911 - 2¹⁴ = 125150527 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 (125166919) 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, 62583455 + 62583456.

It is an arithmetic number, because the mean of its divisors is an integer number (62583456).

Almost surely, 2^125166911 is an apocalyptic number.

125166911 is a deficient number, since it is larger than the sum of its proper divisors (1).

125166911 is an equidigital number, since it uses as much as digits as its factorization.

125166911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 32.

The square root of 125166911 is about 11187.8018841951. The cubic root of 125166911 is about 500.2224490182. Note that the first 3 decimals are identical.

The spelling of 125166911 in words is "one hundred twenty-five million, one hundred sixty-six thousand, nine hundred eleven".