135556823258 has 8 divisors (see below), whose sum is σ = 203342596020. Its totient is φ = 67775957920.

The previous prime is 135556823257. The next prime is 135556823261. The reversal of 135556823258 is 852328655531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121366534129 + 14190289129 = 348377^2 + 119123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (135556823251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157003 + ... + 1268766.

Almost surely, 2^135556823258 is an apocalyptic number.

135556823258 is a deficient number, since it is larger than the sum of its proper divisors (67785772762).

135556823258 is a wasteful number, since it uses less digits than its factorization.

135556823258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453712.

The product of its digits is 8640000, while the sum is 53.

The spelling of 135556823258 in words is "one hundred thirty-five billion, five hundred fifty-six million, eight hundred twenty-three thousand, two hundred fifty-eight".