2172269 has 4 divisors (see below), whose sum is σ = 2369760. Its totient is φ = 1974780.

The previous prime is 2172257. The next prime is 2172283. The reversal of 2172269 is 9622712.

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 2172269 - 2⁴ = 2172253 is a prime.

It is a super-2 number, since 2×2172269² = 9437505216722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172229) 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, 98729 + ... + 98750.

It is an arithmetic number, because the mean of its divisors is an integer number (592440).

2^2172269 is an apocalyptic number.

It is an amenable number.

2172269 is a deficient number, since it is larger than the sum of its proper divisors (197491).

2172269 is a wasteful number, since it uses less digits than its factorization.

2172269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197490.

The product of its digits is 3024, while the sum is 29.

The square root of 2172269 is about 1473.8619338323. The cubic root of 2172269 is about 129.5103672325.

It can be divided in two parts, 2 and 172269, that added together give a palindrome (172271).

The spelling of 2172269 in words is "two million, one hundred seventy-two thousand, two hundred sixty-nine".