13147223 has 2 divisors, whose sum is σ = 13147224. Its totient is φ = 13147222.

The previous prime is 13147219. The next prime is 13147243. The reversal of 13147223 is 32274131.

13147223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13147223 - 2² = 13147219 is a prime.

It is a super-2 number, since 2×13147223² = 345698945223458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13147213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6573611 + 6573612.

It is an arithmetic number, because the mean of its divisors is an integer number (6573612).

Almost surely, 2^13147223 is an apocalyptic number.

13147223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13147223 is an equidigital number, since it uses as much as digits as its factorization.

13147223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 13147223 is about 3625.9099547562. The cubic root of 13147223 is about 236.0177557741.

The spelling of 13147223 in words is "thirteen million, one hundred forty-seven thousand, two hundred twenty-three".