135616557 has 8 divisors (see below), whose sum is σ = 187057440. Its totient is φ = 87293360.

The previous prime is 135616549. The next prime is 135616567. The reversal of 135616557 is 755616531.

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 135616557 - 2³ = 135616549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135616567) 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 in 7 ways as a sum of consecutive naturals, for example, 779319 + ... + 779492.

It is an arithmetic number, because the mean of its divisors is an integer number (23382180).

Almost surely, 2^135616557 is an apocalyptic number.

It is an amenable number.

135616557 is a deficient number, since it is larger than the sum of its proper divisors (51440883).

135616557 is a wasteful number, since it uses less digits than its factorization.

135616557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558843.

The product of its digits is 94500, while the sum is 39.

The square root of 135616557 is about 11645.4522024694. The cubic root of 135616557 is about 513.7725593186.

The spelling of 135616557 in words is "one hundred thirty-five million, six hundred sixteen thousand, five hundred fifty-seven".