13143374 has 4 divisors (see below), whose sum is σ = 19715064. Its totient is φ = 6571686.

The previous prime is 13143359. The next prime is 13143379. The reversal of 13143374 is 47334131.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3285842 + ... + 3285845.

It is an arithmetic number, because the mean of its divisors is an integer number (4928766).

Almost surely, 2^13143374 is an apocalyptic number.

13143374 is a deficient number, since it is larger than the sum of its proper divisors (6571690).

13143374 is an equidigital number, since it uses as much as digits as its factorization.

13143374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571689.

The product of its digits is 3024, while the sum is 26.

The square root of 13143374 is about 3625.3791525853. The cubic root of 13143374 is about 235.9947212264.

The spelling of 13143374 in words is "thirteen million, one hundred forty-three thousand, three hundred seventy-four".