13543091 has 2 divisors, whose sum is σ = 13543092. Its totient is φ = 13543090.

The previous prime is 13543069. The next prime is 13543099. The reversal of 13543091 is 19034531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13543091 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13543091.

It is not a weakly prime, because it can be changed into another prime (13543099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771545 + 6771546.

It is an arithmetic number, because the mean of its divisors is an integer number (6771546).

Almost surely, 2^13543091 is an apocalyptic number.

13543091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13543091 is an equidigital number, since it uses as much as digits as its factorization.

13543091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 13543091 is about 3680.0938846720. The cubic root of 13543091 is about 238.3632320498.

The spelling of 13543091 in words is "thirteen million, five hundred forty-three thousand, ninety-one".