16139930 has 16 divisors (see below), whose sum is σ = 30581280. Its totient is φ = 6116112.

The previous prime is 16139923. The next prime is 16139939. The reversal of 16139930 is 3993161.

It is not an unprimeable number, because it can be changed into a prime (16139939) by changing a digit.

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, 42284 + ... + 42663.

It is an arithmetic number, because the mean of its divisors is an integer number (1911330).

Almost surely, 2^16139930 is an apocalyptic number.

16139930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16139930 is a deficient number, since it is larger than the sum of its proper divisors (14441350).

16139930 is a wasteful number, since it uses less digits than its factorization.

16139930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84973.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 16139930 is about 4017.4531733425. The cubic root of 16139930 is about 252.7166653196.

The spelling of 16139930 in words is "sixteen million, one hundred thirty-nine thousand, nine hundred thirty".