135343997 has 2 divisors, whose sum is σ = 135343998. Its totient is φ = 135343996.

The previous prime is 135343961. The next prime is 135344009. The reversal of 135343997 is 799343531.

It is a happy number.

135343997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102292996 + 33051001 = 10114^2 + 5749^2 .

It is a cyclic number.

It is not a de Polignac number, because 135343997 - 2¹² = 135339901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135343907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67671998 + 67671999.

It is an arithmetic number, because the mean of its divisors is an integer number (67671999).

Almost surely, 2^135343997 is an apocalyptic number.

It is an amenable number.

135343997 is a deficient number, since it is larger than the sum of its proper divisors (1).

135343997 is an equidigital number, since it uses as much as digits as its factorization.

135343997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 44.

The square root of 135343997 is about 11633.7438943790. The cubic root of 135343997 is about 513.4281378376.

The spelling of 135343997 in words is "one hundred thirty-five million, three hundred forty-three thousand, nine hundred ninety-seven".