125915193 has 12 divisors (see below), whose sum is σ = 183206868. Its totient is φ = 83329920.

The previous prime is 125915189. The next prime is 125915197. The reversal of 125915193 is 391519521.

125915193 is a `hidden beast` number, since 12 + 591 + 51 + 9 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (125915189) and next prime (125915197).

It can be written as a sum of positive squares in 2 ways, for example, as 29030544 + 96884649 = 5388^2 + 9843^2 .

It is not a de Polignac number, because 125915193 - 2² = 125915189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125915197) 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 in 11 ways as a sum of consecutive naturals, for example, 49828 + ... + 52293.

It is an arithmetic number, because the mean of its divisors is an integer number (15267239).

Almost surely, 2^125915193 is an apocalyptic number.

It is an amenable number.

125915193 is a deficient number, since it is larger than the sum of its proper divisors (57291675).

125915193 is a wasteful number, since it uses less digits than its factorization.

125915193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102264 (or 102261 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The square root of 125915193 is about 11221.1939204347. The cubic root of 125915193 is about 501.2172913319.

The spelling of 125915193 in words is "one hundred twenty-five million, nine hundred fifteen thousand, one hundred ninety-three".