16187090 has 16 divisors (see below), whose sum is σ = 29220480. Its totient is φ = 6456240.

The previous prime is 16187089. The next prime is 16187099. The reversal of 16187090 is 9078161.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16187099) 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, 1655 + ... + 5925.

It is an arithmetic number, because the mean of its divisors is an integer number (1826280).

Almost surely, 2^16187090 is an apocalyptic number.

16187090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16187090 is a deficient number, since it is larger than the sum of its proper divisors (13033390).

16187090 is a wasteful number, since it uses less digits than its factorization.

16187090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 16187090 is about 4023.3182822143. The cubic root of 16187090 is about 252.9625674335.

The spelling of 16187090 in words is "sixteen million, one hundred eighty-seven thousand, ninety".