13445401 has 4 divisors (see below), whose sum is σ = 13466404. Its totient is φ = 13424400.

The previous prime is 13445389. The next prime is 13445429. The reversal of 13445401 is 10454431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9603801 + 3841600 = 3099^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 13445401 - 2¹³ = 13437209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13445101) 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 in 3 ways as a sum of consecutive naturals, for example, 9510 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (3366601).

Almost surely, 2^13445401 is an apocalyptic number.

It is an amenable number.

13445401 is a deficient number, since it is larger than the sum of its proper divisors (21003).

13445401 is an equidigital number, since it uses as much as digits as its factorization.

13445401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21002.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 13445401 is about 3666.7971037405. The cubic root of 13445401 is about 237.7887221811.

Adding to 13445401 its reverse (10454431), we get a palindrome (23899832).

The spelling of 13445401 in words is "thirteen million, four hundred forty-five thousand, four hundred one".