16738139 has 4 divisors (see below), whose sum is σ = 18259800. Its totient is φ = 15216480.

The previous prime is 16738121. The next prime is 16738147. The reversal of 16738139 is 93183761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16738139 - 2⁸ = 16737883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16738159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760814 + ... + 760835.

It is an arithmetic number, because the mean of its divisors is an integer number (4564950).

Almost surely, 2^16738139 is an apocalyptic number.

16738139 is a deficient number, since it is larger than the sum of its proper divisors (1521661).

16738139 is a wasteful number, since it uses less digits than its factorization.

16738139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521660.

The product of its digits is 27216, while the sum is 38.

The square root of 16738139 is about 4091.2270775404. The cubic root of 16738139 is about 255.8010895878.

The spelling of 16738139 in words is "sixteen million, seven hundred thirty-eight thousand, one hundred thirty-nine".