16291155 has 16 divisors (see below), whose sum is σ = 26175744. Its totient is φ = 8652000.

The previous prime is 16291147. The next prime is 16291159. The reversal of 16291155 is 55119261.

It is not a de Polignac number, because 16291155 - 2³ = 16291147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16291159) 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 15 ways as a sum of consecutive naturals, for example, 1602 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (1635984).

Almost surely, 2^16291155 is an apocalyptic number.

16291155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16291155 is a deficient number, since it is larger than the sum of its proper divisors (9884589).

16291155 is a wasteful number, since it uses less digits than its factorization.

16291155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586.

The product of its digits is 2700, while the sum is 30.

The square root of 16291155 is about 4036.2302957091. The cubic root of 16291155 is about 253.5034992845.

The spelling of 16291155 in words is "sixteen million, two hundred ninety-one thousand, one hundred fifty-five".