13111493 has 2 divisors, whose sum is σ = 13111494. Its totient is φ = 13111492.

The previous prime is 13111489. The next prime is 13111519. The reversal of 13111493 is 39411131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8958049 + 4153444 = 2993^2 + 2038^2 .

It is a cyclic number.

It is not a de Polignac number, because 13111493 - 2² = 13111489 is a prime.

It is a super-2 number, since 2×13111493² = 343822497378098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555746 + 6555747.

It is an arithmetic number, because the mean of its divisors is an integer number (6555747).

Almost surely, 2^13111493 is an apocalyptic number.

It is an amenable number.

13111493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111493 is an equidigital number, since it uses as much as digits as its factorization.

13111493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 23.

The square root of 13111493 is about 3620.9795635988. The cubic root of 13111493 is about 235.8037545537.

The spelling of 13111493 in words is "thirteen million, one hundred eleven thousand, four hundred ninety-three".