238616513 has 4 divisors (see below), whose sum is σ = 248991168. Its totient is φ = 228241860.

The previous prime is 238616507. The next prime is 238616549. The reversal of 238616513 is 315616832.

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 a cyclic number.

It is not a de Polignac number, because 238616513 - 2¹² = 238612417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238616813) 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 in 3 ways as a sum of consecutive naturals, for example, 5187293 + ... + 5187338.

It is an arithmetic number, because the mean of its divisors is an integer number (62247792).

Almost surely, 2^238616513 is an apocalyptic number.

238616513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

238616513 is a deficient number, since it is larger than the sum of its proper divisors (10374655).

238616513 is a wasteful number, since it uses less digits than its factorization.

238616513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10374654.

The product of its digits is 25920, while the sum is 35.

The square root of 238616513 is about 15447.2169985405. The cubic root of 238616513 is about 620.2500838158.

The spelling of 238616513 in words is "two hundred thirty-eight million, six hundred sixteen thousand, five hundred thirteen".