13081406 has 8 divisors (see below), whose sum is σ = 21131544. Its totient is φ = 6037560.

The previous prime is 13081379. The next prime is 13081423. The reversal of 13081406 is 60418031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13081406² = 342246365873672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251540 + ... + 251591.

It is an arithmetic number, because the mean of its divisors is an integer number (2641443).

Almost surely, 2^13081406 is an apocalyptic number.

13081406 is a deficient number, since it is larger than the sum of its proper divisors (8050138).

13081406 is a wasteful number, since it uses less digits than its factorization.

13081406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503146.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 13081406 is about 3616.8226387259. The cubic root of 13081406 is about 235.6232497812.

Adding to 13081406 its reverse (60418031), we get a palindrome (73499437).

The spelling of 13081406 in words is "thirteen million, eighty-one thousand, four hundred six".