13307481 has 24 divisors (see below), whose sum is σ = 22205664. Its totient is φ = 7589760.

The previous prime is 13307461. The next prime is 13307507. The reversal of 13307481 is 18470331.

13307481 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13307481 - 2⁵ = 13307449 is a prime.

It is a super-2 number, since 2×13307481² = 354178101130722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13307431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2271 + ... + 5636.

It is an arithmetic number, because the mean of its divisors is an integer number (925236).

Almost surely, 2^13307481 is an apocalyptic number.

13307481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13307481 is a deficient number, since it is larger than the sum of its proper divisors (8898183).

13307481 is a wasteful number, since it uses less digits than its factorization.

13307481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941 (or 7938 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13307481 is about 3647.9420225656. The cubic root of 13307481 is about 236.9728644892.

The spelling of 13307481 in words is "thirteen million, three hundred seven thousand, four hundred eighty-one".