13431006 has 12 divisors (see below), whose sum is σ = 29100552. Its totient is φ = 4476996.

The previous prime is 13430993. The next prime is 13431017. The reversal of 13431006 is 60013431.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 746167 = 13431006 / (1 + 3 + 4 + 3 + 1 + 0 + 0 + 6).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13431006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373066 + ... + 373101.

It is an arithmetic number, because the mean of its divisors is an integer number (2425046).

Almost surely, 2^13431006 is an apocalyptic number.

13431006 is an abundant number, since it is smaller than the sum of its proper divisors (15669546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13431006 is a wasteful number, since it uses less digits than its factorization.

13431006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746175 (or 746172 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13431006 is about 3664.8336933618. The cubic root of 13431006 is about 237.7038309245.

Adding to 13431006 its reverse (60013431), we get a palindrome (73444437).

The spelling of 13431006 in words is "thirteen million, four hundred thirty-one thousand, six".