1061985313 has 2 divisors, whose sum is σ = 1061985314. Its totient is φ = 1061985312.

The previous prime is 1061985263. The next prime is 1061985343. The reversal of 1061985313 is 3135891601.

1061985313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1061977744 + 7569 = 32588^2 + 87^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061985313 is a prime.

It is a super-2 number, since 2×1061985313² = 2255625610055415938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1061985343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530992656 + 530992657.

It is an arithmetic number, because the mean of its divisors is an integer number (530992657).

Almost surely, 2^1061985313 is an apocalyptic number.

It is an amenable number.

1061985313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061985313 is an equidigital number, since it uses as much as digits as its factorization.

1061985313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1061985313 is about 32588.1161314980. The cubic root of 1061985313 is about 1020.2489822147.

The spelling of 1061985313 in words is "one billion, sixty-one million, nine hundred eighty-five thousand, three hundred thirteen".