291082971 has 8 divisors (see below), whose sum is σ = 389376064. Its totient is φ = 193422600.

The previous prime is 291082969. The next prime is 291082999. The reversal of 291082971 is 179280192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 291082971 - 2¹ = 291082969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (291082271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157105 + ... + 158946.

It is an arithmetic number, because the mean of its divisors is an integer number (48672008).

Almost surely, 2^291082971 is an apocalyptic number.

291082971 is a deficient number, since it is larger than the sum of its proper divisors (98293093).

291082971 is a wasteful number, since it uses less digits than its factorization.

291082971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316361.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 291082971 is about 17061.1538589862. The cubic root of 291082971 is about 662.7335137906.

The spelling of 291082971 in words is "two hundred ninety-one million, eighty-two thousand, nine hundred seventy-one".