125993159 has 2 divisors, whose sum is σ = 125993160. Its totient is φ = 125993158.

The previous prime is 125993141. The next prime is 125993201. The reversal of 125993159 is 951399521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125993159 - 2⁸ = 125992903 is a prime.

It is a super-2 number, since 2×125993159² = 31748552229598562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125993129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62996579 + 62996580.

It is an arithmetic number, because the mean of its divisors is an integer number (62996580).

Almost surely, 2^125993159 is an apocalyptic number.

125993159 is a deficient number, since it is larger than the sum of its proper divisors (1).

125993159 is an equidigital number, since it uses as much as digits as its factorization.

125993159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 44.

The square root of 125993159 is about 11224.6674338263. The cubic root of 125993159 is about 501.3207203240.

The spelling of 125993159 in words is "one hundred twenty-five million, nine hundred ninety-three thousand, one hundred fifty-nine".