291132848 has 20 divisors (see below), whose sum is σ = 564916968. Its totient is φ = 145347840.

The previous prime is 291132799. The next prime is 291132857. The reversal of 291132848 is 848231192.

It is a super-2 number, since 2×291132848² = 169516670369182208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393 + ... + 24248.

Almost surely, 2^291132848 is an apocalyptic number.

It is an amenable number.

291132848 is a deficient number, since it is larger than the sum of its proper divisors (273784120).

291132848 is a wasteful number, since it uses less digits than its factorization.

291132848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27332 (or 27326 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 291132848 is about 17062.6155087665. The cubic root of 291132848 is about 662.7713647071.

The spelling of 291132848 in words is "two hundred ninety-one million, one hundred thirty-two thousand, eight hundred forty-eight".