125549833 has 2 divisors, whose sum is σ = 125549834. Its totient is φ = 125549832.

The previous prime is 125549821. The next prime is 125549861. The reversal of 125549833 is 338945521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 12616704 = 10627^2 + 3552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125549833 is a prime.

It is not a weakly prime, because it can be changed into another prime (125589833) 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 as a sum of consecutive naturals, namely, 62774916 + 62774917.

It is an arithmetic number, because the mean of its divisors is an integer number (62774917).

Almost surely, 2^125549833 is an apocalyptic number.

It is an amenable number.

125549833 is a deficient number, since it is larger than the sum of its proper divisors (1).

125549833 is an equidigital number, since it uses as much as digits as its factorization.

125549833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 125549833 is about 11204.9021860969. The cubic root of 125549833 is about 500.7320383832.

The spelling of 125549833 in words is "one hundred twenty-five million, five hundred forty-nine thousand, eight hundred thirty-three".