13280401 has 2 divisors, whose sum is σ = 13280402. Its totient is φ = 13280400.

The previous prime is 13280363. The next prime is 13280413. The reversal of 13280401 is 10408231.

13280401 = T₂₉₇₄ + T₂₉₇₅ + T₂₉₇₆.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8549776 + 4730625 = 2924^2 + 2175^2 .

It is an emirp because it is prime and its reverse (10408231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13280401 is a prime.

It is not a weakly prime, because it can be changed into another prime (13280441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640200 + 6640201.

It is an arithmetic number, because the mean of its divisors is an integer number (6640201).

Almost surely, 2^13280401 is an apocalyptic number.

13280401 is the 2976-th centered triangular number.

It is an amenable number.

13280401 is a deficient number, since it is larger than the sum of its proper divisors (1).

13280401 is an equidigital number, since it uses as much as digits as its factorization.

13280401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13280401 is about 3644.2284505777. The cubic root of 13280401 is about 236.8120130353.

Adding to 13280401 its reverse (10408231), we get a palindrome (23688632).

The spelling of 13280401 in words is "thirteen million, two hundred eighty thousand, four hundred one".