16539357 has 8 divisors (see below), whose sum is σ = 22414240. Its totient is φ = 10845360.

The previous prime is 16539349. The next prime is 16539377. The reversal of 16539357 is 75393561.

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

It is not a de Polignac number, because 16539357 - 2³ = 16539349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16539307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45007 + ... + 45372.

It is an arithmetic number, because the mean of its divisors is an integer number (2801780).

Almost surely, 2^16539357 is an apocalyptic number.

It is an amenable number.

16539357 is a deficient number, since it is larger than the sum of its proper divisors (5874883).

16539357 is an equidigital number, since it uses as much as digits as its factorization.

16539357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90443.

The product of its digits is 85050, while the sum is 39.

The square root of 16539357 is about 4066.8608286982. The cubic root of 16539357 is about 254.7844237246.

The spelling of 16539357 in words is "sixteen million, five hundred thirty-nine thousand, three hundred fifty-seven".