13131401 has 2 divisors, whose sum is σ = 13131402. Its totient is φ = 13131400.

The previous prime is 13131373. The next prime is 13131407. The reversal of 13131401 is 10413131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 1263376 = 3445^2 + 1124^2 .

It is an emirp because it is prime and its reverse (10413131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13131401 - 2¹⁴ = 13115017 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (13131407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565700 + 6565701.

It is an arithmetic number, because the mean of its divisors is an integer number (6565701).

Almost surely, 2^13131401 is an apocalyptic number.

It is an amenable number.

13131401 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131401 is an equidigital number, since it uses as much as digits as its factorization.

13131401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 13131401 is about 3623.7275007925. The cubic root of 13131401 is about 235.9230393985.

Adding to 13131401 its reverse (10413131), we get a palindrome (23544532).

The spelling of 13131401 in words is "thirteen million, one hundred thirty-one thousand, four hundred one".