2016129 has 4 divisors (see below), whose sum is σ = 2688176. Its totient is φ = 1344084.

The previous prime is 2016127. The next prime is 2016137. The reversal of 2016129 is 9216102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2016129 - 2¹ = 2016127 is a prime.

It is a super-2 number, since 2×2016129² = 8129552289282, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2016127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336019 + ... + 336024.

It is an arithmetic number, because the mean of its divisors is an integer number (672044).

2^2016129 is an apocalyptic number.

It is an amenable number.

2016129 is a deficient number, since it is larger than the sum of its proper divisors (672047).

2016129 is an equidigital number, since it uses as much as digits as its factorization.

2016129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672046.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2016129 is about 1419.9045742584. The cubic root of 2016129 is about 126.3298863745.

It can be divided in two parts, 2016 and 129, that added together give a triangular number (2145 = T₆₅).

The spelling of 2016129 in words is "two million, sixteen thousand, one hundred twenty-nine".