13730091 has 4 divisors (see below), whose sum is σ = 18306792. Its totient is φ = 9153392.

The previous prime is 13730089. The next prime is 13730111. The reversal of 13730091 is 19003731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19003731 = 3 ⋅6334577.

It is a cyclic number.

It is not a de Polignac number, because 13730091 - 2¹ = 13730089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13730081) 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, 2288346 + ... + 2288351.

It is an arithmetic number, because the mean of its divisors is an integer number (4576698).

Almost surely, 2^13730091 is an apocalyptic number.

13730091 is a deficient number, since it is larger than the sum of its proper divisors (4576701).

13730091 is an equidigital number, since it uses as much as digits as its factorization.

13730091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576700.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 13730091 is about 3705.4137420806. The cubic root of 13730091 is about 239.4553098769.

The spelling of 13730091 in words is "thirteen million, seven hundred thirty thousand, ninety-one".