125311033 has 2 divisors, whose sum is σ = 125311034. Its totient is φ = 125311032.

The previous prime is 125311009. The next prime is 125311093. The reversal of 125311033 is 330113521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78907689 + 46403344 = 8883^2 + 6812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125311033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125311033.

It is not a weakly prime, because it can be changed into another prime (125311093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62655516 + 62655517.

It is an arithmetic number, because the mean of its divisors is an integer number (62655517).

Almost surely, 2^125311033 is an apocalyptic number.

It is an amenable number.

125311033 is a deficient number, since it is larger than the sum of its proper divisors (1).

125311033 is an equidigital number, since it uses as much as digits as its factorization.

125311033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 125311033 is about 11194.2410640472. The cubic root of 125311033 is about 500.4143671715.

Adding to 125311033 its reverse (330113521), we get a palindrome (455424554).

The spelling of 125311033 in words is "one hundred twenty-five million, three hundred eleven thousand, thirty-three".