13143603406 has 4 divisors (see below), whose sum is σ = 19715405112. Its totient is φ = 6571801702.

The previous prime is 13143603323. The next prime is 13143603427. The reversal of 13143603406 is 60430634131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3285900850 + ... + 3285900853.

It is an arithmetic number, because the mean of its divisors is an integer number (4928851278).

Almost surely, 2^13143603406 is an apocalyptic number.

13143603406 is a deficient number, since it is larger than the sum of its proper divisors (6571801706).

13143603406 is an equidigital number, since it uses as much as digits as its factorization.

13143603406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571801705.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 13143603406 in words is "thirteen billion, one hundred forty-three million, six hundred three thousand, four hundred six".