91743125 has 20 divisors (see below), whose sum is σ = 115322460. Its totient is φ = 72960000.

The previous prime is 91743121. The next prime is 91743131. The reversal of 91743125 is 52134719.

It can be written as a sum of positive squares in 10 ways, for example, as 27133681 + 64609444 = 5209^2 + 8038^2 .

It is not a de Polignac number, because 91743125 - 2² = 91743121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91743091 and 91743100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91743121) 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 19 ways as a sum of consecutive naturals, for example, 142805 + ... + 143445.

It is an arithmetic number, because the mean of its divisors is an integer number (5766123).

Almost surely, 2^91743125 is an apocalyptic number.

It is an amenable number.

91743125 is a deficient number, since it is larger than the sum of its proper divisors (23579335).

91743125 is an equidigital number, since it uses as much as digits as its factorization.

91743125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 875 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 91743125 is about 9578.2631515322. The cubic root of 91743125 is about 451.0151977088.

The spelling of 91743125 in words is "ninety-one million, seven hundred forty-three thousand, one hundred twenty-five".