13491743 has 2 divisors, whose sum is σ = 13491744. Its totient is φ = 13491742.

The previous prime is 13491721. The next prime is 13491811. The reversal of 13491743 is 34719431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13491743 - 2¹⁶ = 13426207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13491703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6745871 + 6745872.

It is an arithmetic number, because the mean of its divisors is an integer number (6745872).

Almost surely, 2^13491743 is an apocalyptic number.

13491743 is a deficient number, since it is larger than the sum of its proper divisors (1).

13491743 is an equidigital number, since it uses as much as digits as its factorization.

13491743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 13491743 is about 3673.1108069319. The cubic root of 13491743 is about 238.0616028188.

The spelling of 13491743 in words is "thirteen million, four hundred ninety-one thousand, seven hundred forty-three".