135570557 has 8 divisors (see below), whose sum is σ = 138627840. Its totient is φ = 132546960.

The previous prime is 135570527. The next prime is 135570569. The reversal of 135570557 is 755075531.

It is a happy number.

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 135570557 - 2⁶ = 135570493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135570557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135570517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194 + ... + 16467.

It is an arithmetic number, because the mean of its divisors is an integer number (17328480).

Almost surely, 2^135570557 is an apocalyptic number.

It is an amenable number.

135570557 is a deficient number, since it is larger than the sum of its proper divisors (3057283).

135570557 is a wasteful number, since it uses less digits than its factorization.

135570557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843.

The product of its (nonzero) digits is 91875, while the sum is 38.

The square root of 135570557 is about 11643.4770150501. The cubic root of 135570557 is about 513.7144636336.

The spelling of 135570557 in words is "one hundred thirty-five million, five hundred seventy thousand, five hundred fifty-seven".