16105087 has 4 divisors (see below), whose sum is σ = 16497936. Its totient is φ = 15712240.

The previous prime is 16105081. The next prime is 16105093. The reversal of 16105087 is 78050161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16105081) and next prime (16105093).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16105087 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 (16105081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196363 + ... + 196444.

It is an arithmetic number, because the mean of its divisors is an integer number (4124484).

Almost surely, 2^16105087 is an apocalyptic number.

16105087 is a deficient number, since it is larger than the sum of its proper divisors (392849).

16105087 is an equidigital number, since it uses as much as digits as its factorization.

16105087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392848.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 16105087 is about 4013.1143766407. The cubic root of 16105087 is about 252.5346787647.

The spelling of 16105087 in words is "sixteen million, one hundred five thousand, eighty-seven".