135996983 has 2 divisors, whose sum is σ = 135996984. Its totient is φ = 135996982.

The previous prime is 135996967. The next prime is 135996989. The reversal of 135996983 is 389699531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135996983 - 2⁴ = 135996967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135996989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67998491 + 67998492.

It is an arithmetic number, because the mean of its divisors is an integer number (67998492).

Almost surely, 2^135996983 is an apocalyptic number.

135996983 is a deficient number, since it is larger than the sum of its proper divisors (1).

135996983 is an equidigital number, since it uses as much as digits as its factorization.

135996983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 53.

The square root of 135996983 is about 11661.7744361654. The cubic root of 135996983 is about 514.2525153797.

The spelling of 135996983 in words is "one hundred thirty-five million, nine hundred ninety-six thousand, nine hundred eighty-three".