16577139 has 8 divisors (see below), whose sum is σ = 23266240. Its totient is φ = 10469736.

The previous prime is 16577117. The next prime is 16577149. The reversal of 16577139 is 93177561.

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

It is not a de Polignac number, because 16577139 - 2⁸ = 16576883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16577097 and 16577106.

It is not an unprimeable number, because it can be changed into a prime (16577149) 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, 145357 + ... + 145470.

It is an arithmetic number, because the mean of its divisors is an integer number (2908280).

Almost surely, 2^16577139 is an apocalyptic number.

16577139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16577139 is a deficient number, since it is larger than the sum of its proper divisors (6689101).

16577139 is a wasteful number, since it uses less digits than its factorization.

16577139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290849.

The product of its digits is 39690, while the sum is 39.

The square root of 16577139 is about 4071.5032850288. The cubic root of 16577139 is about 254.9782834255.

The spelling of 16577139 in words is "sixteen million, five hundred seventy-seven thousand, one hundred thirty-nine".