16539429 has 4 divisors (see below), whose sum is σ = 22052576. Its totient is φ = 11026284.

The previous prime is 16539427. The next prime is 16539433. The reversal of 16539429 is 92493561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16539429 - 2¹ = 16539427 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 (16539427) 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, 2756569 + ... + 2756574.

It is an arithmetic number, because the mean of its divisors is an integer number (5513144).

Almost surely, 2^16539429 is an apocalyptic number.

It is an amenable number.

16539429 is a deficient number, since it is larger than the sum of its proper divisors (5513147).

16539429 is an equidigital number, since it uses as much as digits as its factorization.

16539429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513146.

The product of its digits is 58320, while the sum is 39.

The square root of 16539429 is about 4066.8696807250. The cubic root of 16539429 is about 254.7847934377.

The spelling of 16539429 in words is "sixteen million, five hundred thirty-nine thousand, four hundred twenty-nine".