125433549 has 8 divisors (see below), whose sum is σ = 185827520. Its totient is φ = 83622348.

The previous prime is 125433521. The next prime is 125433551. The reversal of 125433549 is 945334521.

It is a de Polignac number, because none of the positive numbers 2^k-125433549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125433569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2322817 + ... + 2322870.

It is an arithmetic number, because the mean of its divisors is an integer number (23228440).

Almost surely, 2^125433549 is an apocalyptic number.

It is an amenable number.

125433549 is a deficient number, since it is larger than the sum of its proper divisors (60393971).

125433549 is an equidigital number, since it uses as much as digits as its factorization.

125433549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645696 (or 4645690 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 125433549 is about 11199.7120052258. The cubic root of 125433549 is about 500.5773982991.

It can be divided in two parts, 12 and 5433549, that added together give a square (5433561 = 2331²).

The spelling of 125433549 in words is "one hundred twenty-five million, four hundred thirty-three thousand, five hundred forty-nine".