16139146 has 8 divisors (see below), whose sum is σ = 25261344. Its totient is φ = 7718700.

The previous prime is 16139143. The next prime is 16139153. The reversal of 16139146 is 64193161.

16139146 is digitally balanced in base 2, because in such base 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 an unprimeable number, because it can be changed into a prime (16139143) 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, 175380 + ... + 175471.

It is an arithmetic number, because the mean of its divisors is an integer number (3157668).

Almost surely, 2^16139146 is an apocalyptic number.

16139146 is a deficient number, since it is larger than the sum of its proper divisors (9122198).

16139146 is a wasteful number, since it uses less digits than its factorization.

16139146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350876.

The product of its digits is 3888, while the sum is 31.

The square root of 16139146 is about 4017.3555979027. The cubic root of 16139146 is about 252.7125733342.

The spelling of 16139146 in words is "sixteen million, one hundred thirty-nine thousand, one hundred forty-six".