16291049 has 8 divisors (see below), whose sum is σ = 17284608. Its totient is φ = 15301440.

The previous prime is 16291043. The next prime is 16291057. The reversal of 16291049 is 94019261.

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 16291049 - 2⁸ = 16290793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16291043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15944 + ... + 16934.

It is an arithmetic number, because the mean of its divisors is an integer number (2160576).

Almost surely, 2^16291049 is an apocalyptic number.

It is an amenable number.

16291049 is a deficient number, since it is larger than the sum of its proper divisors (993559).

16291049 is an equidigital number, since it uses as much as digits as its factorization.

16291049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 16291049 is about 4036.2171646233. The cubic root of 16291049 is about 253.5029494682.

The spelling of 16291049 in words is "sixteen million, two hundred ninety-one thousand, forty-nine".