12529749 has 8 divisors (see below), whose sum is σ = 16726240. Its totient is φ = 8343216.

The previous prime is 12529739. The next prime is 12529787. The reversal of 12529749 is 94792521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12529749 is a prime.

It is a super-2 number, since 2×12529749² = 313989220006002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12529729) 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 in 7 ways as a sum of consecutive naturals, for example, 1254 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (2090780).

Almost surely, 2^12529749 is an apocalyptic number.

It is an amenable number.

12529749 is a deficient number, since it is larger than the sum of its proper divisors (4196491).

12529749 is a wasteful number, since it uses less digits than its factorization.

12529749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979.

The product of its digits is 45360, while the sum is 39.

The square root of 12529749 is about 3539.7385496672. The cubic root of 12529749 is about 232.2634059859.

The spelling of 12529749 in words is "twelve million, five hundred twenty-nine thousand, seven hundred forty-nine".