13073661 has 24 divisors (see below), whose sum is σ = 19928064. Its totient is φ = 8246880.

The previous prime is 13073659. The next prime is 13073681. The reversal of 13073661 is 16637031.

It is not a de Polignac number, because 13073661 - 2¹ = 13073659 is a prime.

It is a super-2 number, since 2×13073661² = 341841223885842, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12615 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (830336).

Almost surely, 2^13073661 is an apocalyptic number.

It is an amenable number.

13073661 is a deficient number, since it is larger than the sum of its proper divisors (6854403).

13073661 is a wasteful number, since it uses less digits than its factorization.

13073661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1078 counting only the distinct ones).

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

The square root of 13073661 is about 3615.7517890475. The cubic root of 13073661 is about 235.5767394306.

The spelling of 13073661 in words is "thirteen million, seventy-three thousand, six hundred sixty-one".