16155939 has 8 divisors (see below), whose sum is σ = 22123600. Its totient is φ = 10479456.

The previous prime is 16155901. The next prime is 16155941. The reversal of 16155939 is 93955161.

16155939 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16155939 - 2¹⁷ = 16024867 is a prime.

It is a super-2 number, since 2×16155939² = 522028729943442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16155897 and 16155906.

It is not an unprimeable number, because it can be changed into a prime (16155989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72664 + ... + 72885.

It is an arithmetic number, because the mean of its divisors is an integer number (2765450).

Almost surely, 2^16155939 is an apocalyptic number.

16155939 is a deficient number, since it is larger than the sum of its proper divisors (5967661).

16155939 is a wasteful number, since it uses less digits than its factorization.

16155939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145589.

The product of its digits is 36450, while the sum is 39.

The square root of 16155939 is about 4019.4451109575. The cubic root of 16155939 is about 252.8001932364.

The spelling of 16155939 in words is "sixteen million, one hundred fifty-five thousand, nine hundred thirty-nine".