12635149 has 4 divisors (see below), whose sum is σ = 12648636. Its totient is φ = 12621664.

The previous prime is 12635137. The next prime is 12635159. The reversal of 12635149 is 94153621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94153621 = 751 ⋅125371.

It can be written as a sum of positive squares in 2 ways, for example, as 3087049 + 9548100 = 1757^2 + 3090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12635149 is a prime.

It is a super-4 number, since 4×12635149⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12635149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12635159) 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, 5224 + ... + 7249.

It is an arithmetic number, because the mean of its divisors is an integer number (3162159).

Almost surely, 2^12635149 is an apocalyptic number.

It is an amenable number.

12635149 is a deficient number, since it is larger than the sum of its proper divisors (13487).

12635149 is a wasteful number, since it uses less digits than its factorization.

12635149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13486.

The product of its digits is 6480, while the sum is 31.

The square root of 12635149 is about 3554.5954762814. The cubic root of 12635149 is about 232.9128533839.

The spelling of 12635149 in words is "twelve million, six hundred thirty-five thousand, one hundred forty-nine".