1308881069 has 2 divisors, whose sum is σ = 1308881070. Its totient is φ = 1308881068.

The previous prime is 1308881053. The next prime is 1308881107. The reversal of 1308881069 is 9601888031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072890025 + 235991044 = 32755^2 + 15362^2 .

It is a cyclic number.

It is not a de Polignac number, because 1308881069 - 2⁴ = 1308881053 is a prime.

It is a super-2 number, since 2×1308881069² = 3426339305573165522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1308881869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654440534 + 654440535.

It is an arithmetic number, because the mean of its divisors is an integer number (654440535).

Almost surely, 2^1308881069 is an apocalyptic number.

It is an amenable number.

1308881069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308881069 is an equidigital number, since it uses as much as digits as its factorization.

1308881069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 1308881069 is about 36178.4613962507. The cubic root of 1308881069 is about 1093.8725616823.

The spelling of 1308881069 in words is "one billion, three hundred eight million, eight hundred eighty-one thousand, sixty-nine".