2231269 has 2 divisors, whose sum is σ = 2231270. Its totient is φ = 2231268.

The previous prime is 2231219. The next prime is 2231279. The reversal of 2231269 is 9621322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 114244 = 1455^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231269 - 2¹⁹ = 1706981 is a prime.

It is a super-3 number, since 3×2231269³ = 33325528816975914327, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a d-powerful number, because it can be written as 2⁴ + 2⁸ + 3⁹ + 1 + 2⁸ + 6⁸ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115634 + 1115635.

It is an arithmetic number, because the mean of its divisors is an integer number (1115635).

2^2231269 is an apocalyptic number.

It is an amenable number.

2231269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231269 is an equidigital number, since it uses as much as digits as its factorization.

2231269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 2231269 is about 1493.7432845037. The cubic root of 2231269 is about 130.6724329620.

It can be divided in two parts, 2231 and 269, that added together give a square (2500 = 50²).

The spelling of 2231269 in words is "two million, two hundred thirty-one thousand, two hundred sixty-nine".