13043451 has 4 divisors (see below), whose sum is σ = 17391272. Its totient is φ = 8695632.

The previous prime is 13043449. The next prime is 13043479. The reversal of 13043451 is 15434031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15434031 = 3 ⋅5144677.

It is not a de Polignac number, because 13043451 - 2¹ = 13043449 is a prime.

It is a super-2 number, since 2×13043451² = 340263227978802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13043411) 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, 2173906 + ... + 2173911.

It is an arithmetic number, because the mean of its divisors is an integer number (4347818).

Almost surely, 2^13043451 is an apocalyptic number.

13043451 is a deficient number, since it is larger than the sum of its proper divisors (4347821).

13043451 is an equidigital number, since it uses as much as digits as its factorization.

13043451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347820.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13043451 is about 3611.5718184746. The cubic root of 13043451 is about 235.3951462755.

Adding to 13043451 its reverse (15434031), we get a palindrome (28477482).

The spelling of 13043451 in words is "thirteen million, forty-three thousand, four hundred fifty-one".