125790993 has 12 divisors (see below), whose sum is σ = 186130308. Its totient is φ = 81815040.

The previous prime is 125790991. The next prime is 125791013. The reversal of 125790993 is 399097521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44195904 + 81595089 = 6648^2 + 9033^2 .

It is not a de Polignac number, because 125790993 - 2¹ = 125790991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125790991) 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 11 ways as a sum of consecutive naturals, for example, 170080 + ... + 170817.

It is an arithmetic number, because the mean of its divisors is an integer number (15510859).

Almost surely, 2^125790993 is an apocalyptic number.

It is an amenable number.

125790993 is a deficient number, since it is larger than the sum of its proper divisors (60339315).

125790993 is a wasteful number, since it uses less digits than its factorization.

125790993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340944 (or 340941 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 125790993 is about 11215.6583845978. The cubic root of 125790993 is about 501.0524405170.

The spelling of 125790993 in words is "one hundred twenty-five million, seven hundred ninety thousand, nine hundred ninety-three".