125429549 has 16 divisors (see below), whose sum is σ = 145916160. Its totient is φ = 105598080.

The previous prime is 125429543. The next prime is 125429567. The reversal of 125429549 is 945924521.

It is a de Polignac number, because none of the positive numbers 2^k-125429549 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 (125429543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198464 + ... + 199094.

It is an arithmetic number, because the mean of its divisors is an integer number (9119760).

Almost surely, 2^125429549 is an apocalyptic number.

It is an amenable number.

125429549 is a deficient number, since it is larger than the sum of its proper divisors (20486611).

125429549 is an equidigital number, since it uses as much as digits as its factorization.

125429549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100.

The product of its digits is 129600, while the sum is 41.

The square root of 125429549 is about 11199.5334277817. The cubic root of 125429549 is about 500.5720772057.

It can be divided in two parts, 1254 and 29549, that added together give a palindrome (30803).

The spelling of 125429549 in words is "one hundred twenty-five million, four hundred twenty-nine thousand, five hundred forty-nine".