125994163 has 2 divisors, whose sum is σ = 125994164. Its totient is φ = 125994162.

The previous prime is 125994151. The next prime is 125994179. The reversal of 125994163 is 361499521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125994163 is a prime.

It is a super-2 number, since 2×125994163² = 31749058220141138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125994563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62997081 + 62997082.

It is an arithmetic number, because the mean of its divisors is an integer number (62997082).

Almost surely, 2^125994163 is an apocalyptic number.

125994163 is a deficient number, since it is larger than the sum of its proper divisors (1).

125994163 is an equidigital number, since it uses as much as digits as its factorization.

125994163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 125994163 is about 11224.7121566658. The cubic root of 125994163 is about 501.3220519430.

The spelling of 125994163 in words is "one hundred twenty-five million, nine hundred ninety-four thousand, one hundred sixty-three".