1316875081 has 2 divisors, whose sum is σ = 1316875082. Its totient is φ = 1316875080.

The previous prime is 1316875057. The next prime is 1316875111. The reversal of 1316875081 is 1805786131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035809856 + 281065225 = 32184^2 + 16765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316875081 - 2¹⁵ = 1316842313 is a prime.

It is a super-2 number, since 2×1316875081² = 3468319957917513122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1316845081) 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, 658437540 + 658437541.

It is an arithmetic number, because the mean of its divisors is an integer number (658437541).

Almost surely, 2^1316875081 is an apocalyptic number.

It is an amenable number.

1316875081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316875081 is an equidigital number, since it uses as much as digits as its factorization.

1316875081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 1316875081 is about 36288.7734843712. The cubic root of 1316875081 is about 1096.0949913339.

The spelling of 1316875081 in words is "one billion, three hundred sixteen million, eight hundred seventy-five thousand, eighty-one".