291959 has 4 divisors (see below), whose sum is σ = 293280. Its totient is φ = 290640.

The previous prime is 291923. The next prime is 291971. The reversal of 291959 is 959192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 291959 - 2¹² = 287863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 291959.

It is not an unprimeable number, because it can be changed into a prime (291979) 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 3 ways as a sum of consecutive naturals, for example, 239 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (73320).

2²⁹¹⁹⁵⁹ is an apocalyptic number.

291959 is a deficient number, since it is larger than the sum of its proper divisors (1321).

291959 is a wasteful number, since it uses less digits than its factorization.

291959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its digits is 7290, while the sum is 35.

The square root of 291959 is about 540.3323051604. The cubic root of 291959 is about 66.3397691345.

The spelling of 291959 in words is "two hundred ninety-one thousand, nine hundred fifty-nine".