1338332141 has 4 divisors (see below), whose sum is σ = 1356665532. Its totient is φ = 1319998752.

The previous prime is 1338332117. The next prime is 1338332147. The reversal of 1338332141 is 1412338331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1412338331 = 31 ⋅45559301.

It can be written as a sum of positive squares in 2 ways, for example, as 290838916 + 1047493225 = 17054^2 + 32365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338332141 - 2³⁰ = 264590317 is a prime.

It is a super-2 number, since 2×1338332141² = 3582265839267287762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338332147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9166586 + ... + 9166731.

It is an arithmetic number, because the mean of its divisors is an integer number (339166383).

Almost surely, 2^1338332141 is an apocalyptic number.

It is an amenable number.

1338332141 is a deficient number, since it is larger than the sum of its proper divisors (18333391).

1338332141 is an equidigital number, since it uses as much as digits as its factorization.

1338332141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18333390.

The product of its digits is 5184, while the sum is 29.

The square root of 1338332141 is about 36583.2221243564. Note that the first 3 decimals coincide. The cubic root of 1338332141 is about 1102.0161758731.

The spelling of 1338332141 in words is "one billion, three hundred thirty-eight million, three hundred thirty-two thousand, one hundred forty-one".