1338908551 has 2 divisors, whose sum is σ = 1338908552. Its totient is φ = 1338908550.

The previous prime is 1338908539. The next prime is 1338908563. The reversal of 1338908551 is 1558098331.

It is a balanced prime because it is at equal distance from previous prime (1338908539) and next prime (1338908563).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338908551 is a prime.

It is a super-2 number, since 2×1338908551² = 3585352215881839202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1338908498 and 1338908507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338908521) 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 as a sum of consecutive naturals, namely, 669454275 + 669454276.

It is an arithmetic number, because the mean of its divisors is an integer number (669454276).

Almost surely, 2^1338908551 is an apocalyptic number.

1338908551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338908551 is an equidigital number, since it uses as much as digits as its factorization.

1338908551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 1338908551 is about 36591.0993412332. The cubic root of 1338908551 is about 1102.1743633046.

The spelling of 1338908551 in words is "one billion, three hundred thirty-eight million, nine hundred eight thousand, five hundred fifty-one".