13118461 has 4 divisors (see below), whose sum is σ = 13473052. Its totient is φ = 12763872.

The previous prime is 13118447. The next prime is 13118513. The reversal of 13118461 is 16481131.

13118461 = 384² + 385² + ... + 457².

It is a happy number.

13118461 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 6095961 + 7022500 = 2469^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 13118461 - 2⁵ = 13118429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13118431) 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, 177240 + ... + 177313.

It is an arithmetic number, because the mean of its divisors is an integer number (3368263).

Almost surely, 2^13118461 is an apocalyptic number.

It is an amenable number.

13118461 is a deficient number, since it is larger than the sum of its proper divisors (354591).

13118461 is an equidigital number, since it uses as much as digits as its factorization.

13118461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354590.

The product of its digits is 576, while the sum is 25.

The square root of 13118461 is about 3621.9416063763. The cubic root of 13118461 is about 235.8455191740.

Adding to 13118461 its reverse (16481131), we get a palindrome (29599592).

The spelling of 13118461 in words is "thirteen million, one hundred eighteen thousand, four hundred sixty-one".