12632749 has 4 divisors (see below), whose sum is σ = 12774780. Its totient is φ = 12490720.

The previous prime is 12632713. The next prime is 12632759. The reversal of 12632749 is 94723621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94723621 = 149 ⋅635729.

It can be written as a sum of positive squares in 2 ways, for example, as 6786025 + 5846724 = 2605^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 12632749 - 2⁷ = 12632621 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 (12632759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70882 + ... + 71059.

It is an arithmetic number, because the mean of its divisors is an integer number (3193695).

Almost surely, 2^12632749 is an apocalyptic number.

It is an amenable number.

12632749 is a deficient number, since it is larger than the sum of its proper divisors (142031).

12632749 is an equidigital number, since it uses as much as digits as its factorization.

12632749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142030.

The product of its digits is 18144, while the sum is 34.

The square root of 12632749 is about 3554.2578690917. The cubic root of 12632749 is about 232.8981054707.

The spelling of 12632749 in words is "twelve million, six hundred thirty-two thousand, seven hundred forty-nine".