13116501 has 6 divisors (see below), whose sum is σ = 18946070. Its totient is φ = 8744328.

The previous prime is 13116461. The next prime is 13116529. The reversal of 13116501 is 10561131.

13116501 is a `hidden beast` number, since 1 + 3 + 11 + 650 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7986276 + 5130225 = 2826^2 + 2265^2 .

It is not a de Polignac number, because 13116501 - 2⁷ = 13116373 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 (13116541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728686 + ... + 728703.

Almost surely, 2^13116501 is an apocalyptic number.

It is an amenable number.

13116501 is a deficient number, since it is larger than the sum of its proper divisors (5829569).

13116501 is a wasteful number, since it uses less digits than its factorization.

13116501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457395 (or 1457392 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 13116501 is about 3621.6710231604. The cubic root of 13116501 is about 235.8337728713.

Adding to 13116501 its reverse (10561131), we get a palindrome (23677632).

The spelling of 13116501 in words is "thirteen million, one hundred sixteen thousand, five hundred one".