135333997 has 2 divisors, whose sum is σ = 135333998. Its totient is φ = 135333996.

The previous prime is 135333983. The next prime is 135334013. The reversal of 135333997 is 799333531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104264521 + 31069476 = 10211^2 + 5574^2 .

It is an emirp because it is prime and its reverse (799333531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135333997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135333917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67666998 + 67666999.

It is an arithmetic number, because the mean of its divisors is an integer number (67666999).

Almost surely, 2^135333997 is an apocalyptic number.

It is an amenable number.

135333997 is a deficient number, since it is larger than the sum of its proper divisors (1).

135333997 is an equidigital number, since it uses as much as digits as its factorization.

135333997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 229635, while the sum is 43.

The square root of 135333997 is about 11633.3141021809. The cubic root of 135333997 is about 513.4154925093.

The spelling of 135333997 in words is "one hundred thirty-five million, three hundred thirty-three thousand, nine hundred ninety-seven".