240047 has 2 divisors, whose sum is σ = 240048. Its totient is φ = 240046.

The previous prime is 240043. The next prime is 240049. The reversal of 240047 is 740042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240047 - 2² = 240043 is a prime.

Together with 240049, 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 (240041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120023 + 120024.

It is an arithmetic number, because the mean of its divisors is an integer number (120024).

2²⁴⁰⁰⁴⁷ is an apocalyptic number.

240047 is a deficient number, since it is larger than the sum of its proper divisors (1).

240047 is an equidigital number, since it uses as much as digits as its factorization.

240047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 240047 is about 489.9459153825. The cubic root of 240047 is about 62.1487065190.

Adding to 240047 its reverse (740042), we get a palindrome (980089).

The spelling of 240047 in words is "two hundred forty thousand, forty-seven", and thus it is an iban number.