2129269 has 4 divisors (see below), whose sum is σ = 2142496. Its totient is φ = 2116044.

The previous prime is 2129263. The next prime is 2129279. The reversal of 2129269 is 9629212.

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 2129269 - 2³ = 2129261 is a prime.

It is a super-2 number, since 2×2129269² = 9067572948722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129261) 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, 6369 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (535624).

2^2129269 is an apocalyptic number.

It is an amenable number.

2129269 is a deficient number, since it is larger than the sum of its proper divisors (13227).

2129269 is a wasteful number, since it uses less digits than its factorization.

2129269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13226.

The product of its digits is 3888, while the sum is 31.

The square root of 2129269 is about 1459.2014939685. The cubic root of 2129269 is about 128.6501145033.

The spelling of 2129269 in words is "two million, one hundred twenty-nine thousand, two hundred sixty-nine".