16543140 has 24 divisors (see below), whose sum is σ = 46320960. Its totient is φ = 4411488.

The previous prime is 16543117. The next prime is 16543151. The reversal of 16543140 is 4134561.

It is a self number, because there is not a number n which added to its sum of digits gives 16543140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137800 + ... + 137919.

It is an arithmetic number, because the mean of its divisors is an integer number (1930040).

Almost surely, 2^16543140 is an apocalyptic number.

16543140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16543140 is an abundant number, since it is smaller than the sum of its proper divisors (29777820).

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

16543140 is a wasteful number, since it uses less digits than its factorization.

16543140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275731 (or 275729 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 16543140 is about 4067.3259028507. The cubic root of 16543140 is about 254.8038476155.

The spelling of 16543140 in words is "sixteen million, five hundred forty-three thousand, one hundred forty".