16542949 has 8 divisors (see below), whose sum is σ = 16783200. Its totient is φ = 16304496.

The previous prime is 16542947. The next prime is 16542961. The reversal of 16542949 is 94924561.

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

It is a cyclic number.

It is not a de Polignac number, because 16542949 - 2¹ = 16542947 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 (16542941) 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, 37122 + ... + 37564.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 2^16542949 is an apocalyptic number.

It is an amenable number.

16542949 is a deficient number, since it is larger than the sum of its proper divisors (240251).

16542949 is a wasteful number, since it uses less digits than its factorization.

16542949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899.

The product of its digits is 77760, while the sum is 40.

The square root of 16542949 is about 4067.3024229826. The cubic root of 16542949 is about 254.8028669931.

The spelling of 16542949 in words is "sixteen million, five hundred forty-two thousand, nine hundred forty-nine".