83136517 has 2 divisors, whose sum is σ = 83136518. Its totient is φ = 83136516.

The previous prime is 83136509. The next prime is 83136551. The reversal of 83136517 is 71563138.

It is an a-pointer prime, because the next prime (83136551) can be obtained adding 83136517 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51394561 + 31741956 = 7169^2 + 5634^2 .

It is a cyclic number.

It is not a de Polignac number, because 83136517 - 2³ = 83136509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83136577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41568258 + 41568259.

It is an arithmetic number, because the mean of its divisors is an integer number (41568259).

Almost surely, 2^83136517 is an apocalyptic number.

It is an amenable number.

83136517 is a deficient number, since it is larger than the sum of its proper divisors (1).

83136517 is an equidigital number, since it uses as much as digits as its factorization.

83136517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 83136517 is about 9117.9228445957. The cubic root of 83136517 is about 436.4460914877.

The spelling of 83136517 in words is "eighty-three million, one hundred thirty-six thousand, five hundred seventeen".