13463681 has 12 divisors (see below), whose sum is σ = 17086320. Its totient is φ = 10490760.

The previous prime is 13463657. The next prime is 13463683. The reversal of 13463681 is 18636431.

It is not a de Polignac number, because 13463681 - 2⁶ = 13463617 is a prime.

It is a super-2 number, since 2×13463681² = 362541412139522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13463683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11951 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (1423860).

Almost surely, 2^13463681 is an apocalyptic number.

13463681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13463681 is a deficient number, since it is larger than the sum of its proper divisors (3622639).

13463681 is a wasteful number, since it uses less digits than its factorization.

13463681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25004 (or 24997 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 13463681 is about 3669.2888956854. The cubic root of 13463681 is about 237.8964370646.

The spelling of 13463681 in words is "thirteen million, four hundred sixty-three thousand, six hundred eighty-one".