135570218 has 16 divisors (see below), whose sum is σ = 232784064. Its totient is φ = 58007040.

The previous prime is 135570217. The next prime is 135570251. The reversal of 135570218 is 812075531.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135570217) 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, 1421 + ... + 16527.

It is an arithmetic number, because the mean of its divisors is an integer number (14549004).

Almost surely, 2^135570218 is an apocalyptic number.

135570218 is a deficient number, since it is larger than the sum of its proper divisors (97213846).

135570218 is a wasteful number, since it uses less digits than its factorization.

135570218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15757.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 135570218 is about 11643.4624575338. The cubic root of 135570218 is about 513.7140354449.

The spelling of 135570218 in words is "one hundred thirty-five million, five hundred seventy thousand, two hundred eighteen".