125243361 has 32 divisors (see below), whose sum is σ = 190771200. Its totient is φ = 81179280.

The previous prime is 125243359. The next prime is 125243401. The reversal of 125243361 is 163342521.

It is not a de Polignac number, because 125243361 - 2¹ = 125243359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (125243311) 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 31 ways as a sum of consecutive naturals, for example, 151030 + ... + 151856.

It is an arithmetic number, because the mean of its divisors is an integer number (5961600).

Almost surely, 2^125243361 is an apocalyptic number.

It is an amenable number.

125243361 is a deficient number, since it is larger than the sum of its proper divisors (65527839).

125243361 is an equidigital number, since it uses as much as digits as its factorization.

125243361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 980 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 125243361 is about 11191.2180302235. The cubic root of 125243361 is about 500.3242709845.

Adding to 125243361 its reverse (163342521), we get a palindrome (288585882).

The spelling of 125243361 in words is "one hundred twenty-five million, two hundred forty-three thousand, three hundred sixty-one".