13356401 has 2 divisors, whose sum is σ = 13356402. Its totient is φ = 13356400.

The previous prime is 13356391. The next prime is 13356433. The reversal of 13356401 is 10465331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8271376 + 5085025 = 2876^2 + 2255^2 .

It is an emirp because it is prime and its reverse (10465331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13356401 - 2⁶ = 13356337 is a prime.

It is not a weakly prime, because it can be changed into another prime (13356481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6678200 + 6678201.

It is an arithmetic number, because the mean of its divisors is an integer number (6678201).

Almost surely, 2^13356401 is an apocalyptic number.

It is an amenable number.

13356401 is a deficient number, since it is larger than the sum of its proper divisors (1).

13356401 is an equidigital number, since it uses as much as digits as its factorization.

13356401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13356401 is about 3654.6410220431. The cubic root of 13356401 is about 237.2628902284.

The spelling of 13356401 in words is "thirteen million, three hundred fifty-six thousand, four hundred one".