13143450 has 24 divisors (see below), whose sum is σ = 32596128. Its totient is φ = 3504880.

The previous prime is 13143443. The next prime is 13143461. The reversal of 13143450 is 5434131.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 43662 + ... + 43961.

It is an arithmetic number, because the mean of its divisors is an integer number (1358172).

Almost surely, 2^13143450 is an apocalyptic number.

13143450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13143450 is an abundant number, since it is smaller than the sum of its proper divisors (19452678).

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

13143450 is a wasteful number, since it uses less digits than its factorization.

13143450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87638 (or 87633 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13143450 is about 3625.3896342324. The cubic root of 13143450 is about 235.9951760960.

Adding to 13143450 its reverse (5434131), we get a palindrome (18577581).

The spelling of 13143450 in words is "thirteen million, one hundred forty-three thousand, four hundred fifty".