135502897 has 2 divisors, whose sum is σ = 135502898. Its totient is φ = 135502896.

The previous prime is 135502859. The next prime is 135502907. The reversal of 135502897 is 798205531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82519056 + 52983841 = 9084^2 + 7279^2 .

It is a cyclic number.

It is not a de Polignac number, because 135502897 - 2²³ = 127114289 is a prime.

It is a super-2 number, since 2×135502897² = 36722070190785218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135502817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67751448 + 67751449.

It is an arithmetic number, because the mean of its divisors is an integer number (67751449).

Almost surely, 2^135502897 is an apocalyptic number.

It is an amenable number.

135502897 is a deficient number, since it is larger than the sum of its proper divisors (1).

135502897 is an equidigital number, since it uses as much as digits as its factorization.

135502897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 135502897 is about 11640.5711629628. The cubic root of 135502897 is about 513.6289885736.

The spelling of 135502897 in words is "one hundred thirty-five million, five hundred two thousand, eight hundred ninety-seven".