1291959 has 6 divisors (see below), whose sum is σ = 1866176. Its totient is φ = 861300.

The previous prime is 1291957. The next prime is 1291963. The reversal of 1291959 is 9591921.

It is not a de Polignac number, because 1291959 - 2¹ = 1291957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71767 + ... + 71784.

2^1291959 is an apocalyptic number.

1291959 is a deficient number, since it is larger than the sum of its proper divisors (574217).

1291959 is a wasteful number, since it uses less digits than its factorization.

1291959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143557 (or 143554 counting only the distinct ones).

The product of its digits is 7290, while the sum is 36.

The square root of 1291959 is about 1136.6437436594. The cubic root of 1291959 is about 108.9137999294.

The spelling of 1291959 in words is "one million, two hundred ninety-one thousand, nine hundred fifty-nine".