125943163 has 4 divisors (see below), whose sum is σ = 125967688. Its totient is φ = 125918640.

The previous prime is 125943161. The next prime is 125943179. The reversal of 125943163 is 361349521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125943163 - 2¹ = 125943161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125943161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281 + ... + 15922.

It is an arithmetic number, because the mean of its divisors is an integer number (31491922).

Almost surely, 2^125943163 is an apocalyptic number.

125943163 is a deficient number, since it is larger than the sum of its proper divisors (24525).

125943163 is an equidigital number, since it uses as much as digits as its factorization.

125943163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24524.

The product of its digits is 19440, while the sum is 34.

The square root of 125943163 is about 11222.4401535495. The cubic root of 125943163 is about 501.2544009912.

The spelling of 125943163 in words is "one hundred twenty-five million, nine hundred forty-three thousand, one hundred sixty-three".