1269091 has 2 divisors, whose sum is σ = 1269092. Its totient is φ = 1269090.

The previous prime is 1269077. The next prime is 1269113. The reversal of 1269091 is 1909621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1269091 - 2⁷ = 1268963 is a prime.

It is a super-2 number, since 2×1269091² = 3221183932562, which contains 22 as substring.

It is equal to p₉₇₈₄₀ and since 1269091 and 97840 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1269001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634545 + 634546.

It is an arithmetic number, because the mean of its divisors is an integer number (634546).

2^1269091 is an apocalyptic number.

1269091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269091 is an equidigital number, since it uses as much as digits as its factorization.

1269091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1269091 is about 1126.5393912332. The cubic root of 1269091 is about 108.2673702318.

The spelling of 1269091 in words is "one million, two hundred sixty-nine thousand, ninety-one".