241158391 has 4 divisors (see below), whose sum is σ = 241206784. Its totient is φ = 241110000.

The previous prime is 241158389. The next prime is 241158439. The reversal of 241158391 is 193851142.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193851142 = 2 ⋅96925571.

It is a cyclic number.

It is not a de Polignac number, because 241158391 - 2¹ = 241158389 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 (241158361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15735 + ... + 27016.

It is an arithmetic number, because the mean of its divisors is an integer number (60301696).

Almost surely, 2^241158391 is an apocalyptic number.

241158391 is a deficient number, since it is larger than the sum of its proper divisors (48393).

241158391 is an equidigital number, since it uses as much as digits as its factorization.

241158391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48392.

The product of its digits is 8640, while the sum is 34.

The square root of 241158391 is about 15529.2752889502. The cubic root of 241158391 is about 622.4447274892. Note that the first 3 decimals are identical.

The spelling of 241158391 in words is "two hundred forty-one million, one hundred fifty-eight thousand, three hundred ninety-one".