125286191 has 2 divisors, whose sum is σ = 125286192. Its totient is φ = 125286190.

The previous prime is 125286167. The next prime is 125286211. The reversal of 125286191 is 191682521.

It is a strong prime.

It is an emirp because it is prime and its reverse (191682521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125286191 - 2⁶ = 125286127 is a prime.

It is a Chen prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62643095 + 62643096.

It is an arithmetic number, because the mean of its divisors is an integer number (62643096).

Almost surely, 2^125286191 is an apocalyptic number.

125286191 is a deficient number, since it is larger than the sum of its proper divisors (1).

125286191 is an equidigital number, since it uses as much as digits as its factorization.

125286191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 35.

The square root of 125286191 is about 11193.1314206526. The cubic root of 125286191 is about 500.3812971511.

The spelling of 125286191 in words is "one hundred twenty-five million, two hundred eighty-six thousand, one hundred ninety-one".