16129140 has 24 divisors (see below), whose sum is σ = 45161760. Its totient is φ = 4301088.

The previous prime is 16129129. The next prime is 16129159. The reversal of 16129140 is 4192161.

It is a self number, because there is not a number n which added to its sum of digits gives 16129140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134350 + ... + 134469.

It is an arithmetic number, because the mean of its divisors is an integer number (1881740).

Almost surely, 2^16129140 is an apocalyptic number.

16129140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16129140 is an abundant number, since it is smaller than the sum of its proper divisors (29032620).

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

16129140 is a wasteful number, since it uses less digits than its factorization.

16129140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268831 (or 268829 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 16129140 is about 4016.1100582529. The cubic root of 16129140 is about 252.6603366843.

The spelling of 16129140 in words is "sixteen million, one hundred twenty-nine thousand, one hundred forty".