13037661 has 24 divisors (see below), whose sum is σ = 23179520. Its totient is φ = 6876576.

The previous prime is 13037641. The next prime is 13037663. The reversal of 13037661 is 16673031.

13037661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13037661 - 2⁷ = 13037533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13037663) 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 23 ways as a sum of consecutive naturals, for example, 7141 + ... + 8778.

Almost surely, 2^13037661 is an apocalyptic number.

It is an amenable number.

13037661 is a deficient number, since it is larger than the sum of its proper divisors (10141859).

13037661 is a wasteful number, since it uses less digits than its factorization.

13037661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945 (or 15942 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13037661 is about 3610.7701394578. The cubic root of 13037661 is about 235.3603104125.

The spelling of 13037661 in words is "thirteen million, thirty-seven thousand, six hundred sixty-one".