2129529 has 4 divisors (see below), whose sum is σ = 2839376. Its totient is φ = 1419684.

The previous prime is 2129527. The next prime is 2129537. The reversal of 2129529 is 9259212.

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 2129529 - 2¹ = 2129527 is a prime.

It is a super-3 number, since 3×2129529³ = 28971563333278508667, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

2129529 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2129496 and 2129505.

It is not an unprimeable number, because it can be changed into a prime (2129521) 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, 354919 + ... + 354924.

It is an arithmetic number, because the mean of its divisors is an integer number (709844).

2^2129529 is an apocalyptic number.

It is an amenable number.

2129529 is a deficient number, since it is larger than the sum of its proper divisors (709847).

2129529 is an equidigital number, since it uses as much as digits as its factorization.

2129529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709846.

The product of its digits is 3240, while the sum is 30.

The square root of 2129529 is about 1459.2905810701. The cubic root of 2129529 is about 128.6553506772.

The spelling of 2129529 in words is "two million, one hundred twenty-nine thousand, five hundred twenty-nine".