16381085 has 16 divisors (see below), whose sum is σ = 23241600. Its totient is φ = 10844736.

The previous prime is 16381067. The next prime is 16381087. The reversal of 16381085 is 58018361.

It is not a de Polignac number, because 16381085 - 2¹⁴ = 16364701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16381087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7055 + ... + 9084.

It is an arithmetic number, because the mean of its divisors is an integer number (1452600).

Almost surely, 2^16381085 is an apocalyptic number.

It is an amenable number.

16381085 is a deficient number, since it is larger than the sum of its proper divisors (6860515).

16381085 is a wasteful number, since it uses less digits than its factorization.

16381085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16180.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 16381085 is about 4047.3553093347. The cubic root of 16381085 is about 253.9691046804.

The spelling of 16381085 in words is "sixteen million, three hundred eighty-one thousand, eighty-five".