291365241 has 4 divisors (see below), whose sum is σ = 388486992. Its totient is φ = 194243492.

The previous prime is 291365231. The next prime is 291365251. The reversal of 291365241 is 142563192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (291365231) and next prime (291365251).

It is a cyclic number.

It is not a de Polignac number, because 291365241 - 2¹³ = 291357049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (291365231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48560871 + ... + 48560876.

It is an arithmetic number, because the mean of its divisors is an integer number (97121748).

Almost surely, 2^291365241 is an apocalyptic number.

It is an amenable number.

291365241 is a deficient number, since it is larger than the sum of its proper divisors (97121751).

291365241 is an equidigital number, since it uses as much as digits as its factorization.

291365241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97121750.

The product of its digits is 12960, while the sum is 33.

The square root of 291365241 is about 17069.4241554893. The cubic root of 291365241 is about 662.9476673384.

The spelling of 291365241 in words is "two hundred ninety-one million, three hundred sixty-five thousand, two hundred forty-one".