241997519 has 2 divisors, whose sum is σ = 241997520. Its totient is φ = 241997518.

The previous prime is 241997477. The next prime is 241997521. The reversal of 241997519 is 915799142.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241997519 is a prime.

It is a super-2 number, since 2×241997519² = 117125598404310722, which contains 22 as substring.

Together with 241997521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241997579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120998759 + 120998760.

It is an arithmetic number, because the mean of its divisors is an integer number (120998760).

Almost surely, 2^241997519 is an apocalyptic number.

241997519 is a deficient number, since it is larger than the sum of its proper divisors (1).

241997519 is an equidigital number, since it uses as much as digits as its factorization.

241997519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 47.

The square root of 241997519 is about 15556.2694435395. The cubic root of 241997519 is about 623.1658388433.

The spelling of 241997519 in words is "two hundred forty-one million, nine hundred ninety-seven thousand, five hundred nineteen".