13116451 has 4 divisors (see below), whose sum is σ = 13124592. Its totient is φ = 13108312.

The previous prime is 13116443. The next prime is 13116461. The reversal of 13116451 is 15461131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13116451 - 2³ = 13116443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13116461) 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, 751 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (3281148).

Almost surely, 2^13116451 is an apocalyptic number.

13116451 is a deficient number, since it is larger than the sum of its proper divisors (8141).

13116451 is an equidigital number, since it uses as much as digits as its factorization.

13116451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140.

The product of its digits is 360, while the sum is 22.

The square root of 13116451 is about 3621.6641202629. The cubic root of 13116451 is about 235.8334732054.

Adding to 13116451 its reverse (15461131), we get a palindrome (28577582).

The spelling of 13116451 in words is "thirteen million, one hundred sixteen thousand, four hundred fifty-one".