2086129 has 4 divisors (see below), whose sum is σ = 2089840. Its totient is φ = 2082420.

The previous prime is 2086127. The next prime is 2086141. The reversal of 2086129 is 9216802.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2086129 - 2¹ = 2086127 is a prime.

It is a Duffinian number.

2086129 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2086097 and 2086106.

It is not an unprimeable number, because it can be changed into a prime (2086127) 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, 819 + ... + 2200.

It is an arithmetic number, because the mean of its divisors is an integer number (522460).

2^2086129 is an apocalyptic number.

It is an amenable number.

2086129 is a deficient number, since it is larger than the sum of its proper divisors (3711).

2086129 is an equidigital number, since it uses as much as digits as its factorization.

2086129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2086129 is about 1444.3437956387. The cubic root of 2086129 is about 127.7753424167.

The spelling of 2086129 in words is "two million, eighty-six thousand, one hundred twenty-nine".