1269261 has 12 divisors (see below), whose sum is σ = 2095392. Its totient is φ = 725256.

The previous prime is 1269253. The next prime is 1269263. The reversal of 1269261 is 1629621.

It is not a de Polignac number, because 1269261 - 2³ = 1269253 is a prime.

It is a super-2 number, since 2×1269261² = 3222046972242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10011 + ... + 10136.

It is an arithmetic number, because the mean of its divisors is an integer number (174616).

2^1269261 is an apocalyptic number.

It is an amenable number.

1269261 is a deficient number, since it is larger than the sum of its proper divisors (826131).

1269261 is a wasteful number, since it uses less digits than its factorization.

1269261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20160 (or 20157 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1269261 is about 1126.6148410171. The cubic root of 1269261 is about 108.2722043036.

The spelling of 1269261 in words is "one million, two hundred sixty-nine thousand, two hundred sixty-one".