1291096 has 8 divisors (see below), whose sum is σ = 2420820. Its totient is φ = 645544.

The previous prime is 1291079. The next prime is 1291111. The reversal of 1291096 is 6901921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 80686 + ... + 80701.

2^1291096 is an apocalyptic number.

It is an amenable number.

1291096 is a deficient number, since it is larger than the sum of its proper divisors (1129724).

1291096 is a wasteful number, since it uses less digits than its factorization.

1291096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161393 (or 161389 counting only the distinct ones).

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

The square root of 1291096 is about 1136.2640538185. The cubic root of 1291096 is about 108.8895438590.

It can be divided in two parts, 129 and 1096, that added together give a triangular number (1225 = T₄₉).

The spelling of 1291096 in words is "one million, two hundred ninety-one thousand, ninety-six".