13105451 has 4 divisors (see below), whose sum is σ = 13263432. Its totient is φ = 12947472.

The previous prime is 13105439. The next prime is 13105481. The reversal of 13105451 is 15450131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15450131 = 1889 ⋅8179.

It is a cyclic number.

It is not a de Polignac number, because 13105451 - 2⁶ = 13105387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13105481) 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, 78866 + ... + 79031.

It is an arithmetic number, because the mean of its divisors is an integer number (3315858).

Almost surely, 2^13105451 is an apocalyptic number.

13105451 is a deficient number, since it is larger than the sum of its proper divisors (157981).

13105451 is an equidigital number, since it uses as much as digits as its factorization.

13105451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157980.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 13105451 is about 3620.1451628353. The cubic root of 13105451 is about 235.7675281888.

Adding to 13105451 its reverse (15450131), we get a palindrome (28555582).

The spelling of 13105451 in words is "thirteen million, one hundred five thousand, four hundred fifty-one".