238281265247 has 4 divisors (see below), whose sum is σ = 238307433240. Its totient is φ = 238255097256.

The previous prime is 238281265193. The next prime is 238281265259. The reversal of 238281265247 is 742562182832.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238281265247 is a prime.

It is a super-2 number, since 2×238281265247² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238281265195 and 238281265204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238281265447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13070333 + ... + 13088550.

It is an arithmetic number, because the mean of its divisors is an integer number (59576858310).

Almost surely, 2^238281265247 is an apocalyptic number.

238281265247 is a deficient number, since it is larger than the sum of its proper divisors (26167993).

238281265247 is an equidigital number, since it uses as much as digits as its factorization.

238281265247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26167992.

The product of its digits is 2580480, while the sum is 50.

The spelling of 238281265247 in words is "two hundred thirty-eight billion, two hundred eighty-one million, two hundred sixty-five thousand, two hundred forty-seven".