13143573 has 16 divisors (see below), whose sum is σ = 20497600. Its totient is φ = 8300880.

The previous prime is 13143553. The next prime is 13143587. The reversal of 13143573 is 37534131.

It is not a de Polignac number, because 13143573 - 2²¹ = 11046421 is a prime.

It is a super-2 number, since 2×13143573² = 345507022412658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143553) 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, 12298 + ... + 13323.

It is an arithmetic number, because the mean of its divisors is an integer number (1281100).

Almost surely, 2^13143573 is an apocalyptic number.

It is an amenable number.

13143573 is a deficient number, since it is larger than the sum of its proper divisors (7354027).

13143573 is a wasteful number, since it uses less digits than its factorization.

13143573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25649 (or 25643 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 13143573 is about 3625.4065978866. The cubic root of 13143573 is about 235.9959122628.

The spelling of 13143573 in words is "thirteen million, one hundred forty-three thousand, five hundred seventy-three".