1331412073 has 2 divisors, whose sum is σ = 1331412074. Its totient is φ = 1331412072.

The previous prime is 1331412059. The next prime is 1331412191. The reversal of 1331412073 is 3702141331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 942060249 + 389351824 = 30693^2 + 19732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331412073 - 2⁵ = 1331412041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331412673) 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, 665706036 + 665706037.

It is an arithmetic number, because the mean of its divisors is an integer number (665706037).

Almost surely, 2^1331412073 is an apocalyptic number.

It is an amenable number.

1331412073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331412073 is an equidigital number, since it uses as much as digits as its factorization.

1331412073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1331412073 is about 36488.5197425163. The cubic root of 1331412073 is about 1100.1135070198.

The spelling of 1331412073 in words is "one billion, three hundred thirty-one million, four hundred twelve thousand, seventy-three".