13490023 has 2 divisors, whose sum is σ = 13490024. Its totient is φ = 13490022.

The previous prime is 13489963. The next prime is 13490033. The reversal of 13490023 is 32009431.

It is a strong prime.

It is an emirp because it is prime and its reverse (32009431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13490023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13489976 and 13490003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13490033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6745011 + 6745012.

It is an arithmetic number, because the mean of its divisors is an integer number (6745012).

Almost surely, 2^13490023 is an apocalyptic number.

13490023 is a deficient number, since it is larger than the sum of its proper divisors (1).

13490023 is an equidigital number, since it uses as much as digits as its factorization.

13490023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13490023 is about 3672.8766655035. The cubic root of 13490023 is about 238.0514859308.

Adding to 13490023 its reverse (32009431), we get a palindrome (45499454).

The spelling of 13490023 in words is "thirteen million, four hundred ninety thousand, twenty-three".