2001269 has 2 divisors, whose sum is σ = 2001270. Its totient is φ = 2001268.

The previous prime is 2001247. The next prime is 2001281. The reversal of 2001269 is 9621002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 69169 = 1390^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001269 - 2¹² = 1997173 is a prime.

It is a super-2 number, since 2×2001269² = 8010155220722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000634 + 1000635.

It is an arithmetic number, because the mean of its divisors is an integer number (1000635).

2^2001269 is an apocalyptic number.

It is an amenable number.

2001269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001269 is an equidigital number, since it uses as much as digits as its factorization.

2001269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2001269 is about 1414.6621504798. The cubic root of 2001269 is about 126.0187466858.

The spelling of 2001269 in words is "two million, one thousand, two hundred sixty-nine".