135558997 has 8 divisors (see below), whose sum is σ = 158703552. Its totient is φ = 113359200.

The previous prime is 135558989. The next prime is 135559013. The reversal of 135558997 is 799855531.

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

It is a cyclic number.

It is not a de Polignac number, because 135558997 - 2³ = 135558989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135558967) 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 in 7 ways as a sum of consecutive naturals, for example, 235879 + ... + 236452.

It is an arithmetic number, because the mean of its divisors is an integer number (19837944).

Almost surely, 2^135558997 is an apocalyptic number.

It is an amenable number.

135558997 is a deficient number, since it is larger than the sum of its proper divisors (23144555).

135558997 is an equidigital number, since it uses as much as digits as its factorization.

135558997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472379.

The product of its digits is 1701000, while the sum is 52.

The square root of 135558997 is about 11642.9805891790. The cubic root of 135558997 is about 513.6998618692.

The spelling of 135558997 in words is "one hundred thirty-five million, five hundred fifty-eight thousand, nine hundred ninety-seven".