83081513 has 2 divisors, whose sum is σ = 83081514. Its totient is φ = 83081512.

The previous prime is 83081503. The next prime is 83081569. The reversal of 83081513 is 31518038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 7252249 = 8708^2 + 2693^2 .

It is a cyclic number.

It is not a de Polignac number, because 83081513 - 2¹⁰ = 83080489 is a prime.

It is not a weakly prime, because it can be changed into another prime (83081503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41540756 + 41540757.

It is an arithmetic number, because the mean of its divisors is an integer number (41540757).

Almost surely, 2^83081513 is an apocalyptic number.

It is an amenable number.

83081513 is a deficient number, since it is larger than the sum of its proper divisors (1).

83081513 is an equidigital number, since it uses as much as digits as its factorization.

83081513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 83081513 is about 9114.9060883807. The cubic root of 83081513 is about 436.3498178008.

The spelling of 83081513 in words is "eighty-three million, eighty-one thousand, five hundred thirteen".