238419121 has 4 divisors (see below), whose sum is σ = 246640500. Its totient is φ = 230197744.

The previous prime is 238419107. The next prime is 238419149. The reversal of 238419121 is 121914832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 157778721 + 80640400 = 12561^2 + 8980^2 .

It is a cyclic number.

It is not a de Polignac number, because 238419121 - 2⁵ = 238419089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238419161) 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, 4110646 + ... + 4110703.

It is an arithmetic number, because the mean of its divisors is an integer number (61660125).

Almost surely, 2^238419121 is an apocalyptic number.

It is an amenable number.

238419121 is a deficient number, since it is larger than the sum of its proper divisors (8221379).

238419121 is an equidigital number, since it uses as much as digits as its factorization.

238419121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8221378.

The product of its digits is 3456, while the sum is 31.

The square root of 238419121 is about 15440.8264351362. The cubic root of 238419121 is about 620.0790057142.

The spelling of 238419121 in words is "two hundred thirty-eight million, four hundred nineteen thousand, one hundred twenty-one".