1338182971 has 2 divisors, whose sum is σ = 1338182972. Its totient is φ = 1338182970.

The previous prime is 1338182917. The next prime is 1338183001. The reversal of 1338182971 is 1792818331.

Together with previous prime (1338182917) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1338182971 - 2⁷ = 1338182843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1338182171) 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 as a sum of consecutive naturals, namely, 669091485 + 669091486.

It is an arithmetic number, because the mean of its divisors is an integer number (669091486).

Almost surely, 2^1338182971 is an apocalyptic number.

1338182971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338182971 is an equidigital number, since it uses as much as digits as its factorization.

1338182971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 1338182971 is about 36581.1832914136. The cubic root of 1338182971 is about 1101.9752309149.

The spelling of 1338182971 in words is "one billion, three hundred thirty-eight million, one hundred eighty-two thousand, nine hundred seventy-one".