13481431 has 16 divisors (see below), whose sum is σ = 14786560. Its totient is φ = 12247200.

The previous prime is 13481417. The next prime is 13481443. The reversal of 13481431 is 13418431.

13481431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13481431 - 2⁵ = 13481399 is a prime.

It is a super-2 number, since 2×13481431² = 363497963615522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13481396 and 13481405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13481401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89206 + ... + 89356.

It is an arithmetic number, because the mean of its divisors is an integer number (924160).

Almost surely, 2^13481431 is an apocalyptic number.

13481431 is a deficient number, since it is larger than the sum of its proper divisors (1305129).

13481431 is a wasteful number, since it uses less digits than its factorization.

13481431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its digits is 1152, while the sum is 25.

The square root of 13481431 is about 3671.7068238082. The cubic root of 13481431 is about 238.0009356647. Note that the first 3 decimals are identical.

Adding to 13481431 its reverse (13418431), we get a palindrome (26899862).

The spelling of 13481431 in words is "thirteen million, four hundred eighty-one thousand, four hundred thirty-one".