13151441 has 4 divisors (see below), whose sum is σ = 13299300. Its totient is φ = 13003584.

The previous prime is 13151431. The next prime is 13151443. The reversal of 13151441 is 14415131.

It is a happy number.

13151441 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2235025 + 10916416 = 1495^2 + 3304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13151441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13151443) 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, 73796 + ... + 73973.

It is an arithmetic number, because the mean of its divisors is an integer number (3324825).

Almost surely, 2^13151441 is an apocalyptic number.

It is an amenable number.

13151441 is a deficient number, since it is larger than the sum of its proper divisors (147859).

13151441 is an equidigital number, since it uses as much as digits as its factorization.

13151441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147858.

The product of its digits is 240, while the sum is 20.

The square root of 13151441 is about 3626.4915552087. The cubic root of 13151441 is about 236.0429934599.

Adding to 13151441 its reverse (14415131), we get a palindrome (27566572).

The spelling of 13151441 in words is "thirteen million, one hundred fifty-one thousand, four hundred forty-one".