220115135 has 8 divisors (see below), whose sum is σ = 268615440. Its totient is φ = 173107264.

The previous prime is 220115131. The next prime is 220115141. The reversal of 220115135 is 531511022.

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 220115135 - 2² = 220115131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220115131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372782 + ... + 373371.

It is an arithmetic number, because the mean of its divisors is an integer number (33576930).

Almost surely, 2^220115135 is an apocalyptic number.

220115135 is a deficient number, since it is larger than the sum of its proper divisors (48500305).

220115135 is an equidigital number, since it uses as much as digits as its factorization.

220115135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746217.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 220115135 is about 14836.2776665847. The cubic root of 220115135 is about 603.7863656480.

Adding to 220115135 its reverse (531511022), we get a palindrome (751626157).

The spelling of 220115135 in words is "two hundred twenty million, one hundred fifteen thousand, one hundred thirty-five".