338568121 has 4 divisors (see below), whose sum is σ = 342058612. Its totient is φ = 335077632.

The previous prime is 338568091. The next prime is 338568133. The reversal of 338568121 is 121865833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121865833 = 919 ⋅132607.

It can be written as a sum of positive squares in 2 ways, for example, as 102515625 + 236052496 = 10125^2 + 15364^2 .

It is a cyclic number.

It is not a de Polignac number, because 338568121 - 2⁹ = 338567609 is a prime.

It is a super-2 number, since 2×338568121² = 229256745114941282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338568151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745100 + ... + 1745293.

It is an arithmetic number, because the mean of its divisors is an integer number (85514653).

Almost surely, 2^338568121 is an apocalyptic number.

It is an amenable number.

338568121 is a deficient number, since it is larger than the sum of its proper divisors (3490491).

338568121 is an equidigital number, since it uses as much as digits as its factorization.

338568121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490490.

The product of its digits is 34560, while the sum is 37.

The square root of 338568121 is about 18400.2206780245. The cubic root of 338568121 is about 696.9720372719.

The spelling of 338568121 in words is "three hundred thirty-eight million, five hundred sixty-eight thousand, one hundred twenty-one".