13044457 has 4 divisors (see below), whose sum is σ = 13811796. Its totient is φ = 12277120.

The previous prime is 13044439. The next prime is 13044467. The reversal of 13044457 is 75444031.

13044457 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 75444031 = 13 ⋅5803387.

It can be written as a sum of positive squares in 2 ways, for example, as 6095961 + 6948496 = 2469^2 + 2636^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044457 - 2⁷ = 13044329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13044407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383644 + ... + 383677.

It is an arithmetic number, because the mean of its divisors is an integer number (3452949).

Almost surely, 2^13044457 is an apocalyptic number.

13044457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13044457 is a deficient number, since it is larger than the sum of its proper divisors (767339).

13044457 is an equidigital number, since it uses as much as digits as its factorization.

13044457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767338.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 13044457 is about 3611.7110903282. The cubic root of 13044457 is about 235.4011978802.

Adding to 13044457 its reverse (75444031), we get a palindrome (88488488).

The spelling of 13044457 in words is "thirteen million, forty-four thousand, four hundred fifty-seven".