220136234 has 8 divisors (see below), whose sum is σ = 331685760. Its totient is φ = 109574316.

The previous prime is 220136233. The next prime is 220136237. The reversal of 220136234 is 432631022.

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

It is not an unprimeable number, because it can be changed into a prime (220136233) 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 3 ways as a sum of consecutive naturals, for example, 246344 + ... + 247235.

It is an arithmetic number, because the mean of its divisors is an integer number (41460720).

Almost surely, 2^220136234 is an apocalyptic number.

220136234 is a deficient number, since it is larger than the sum of its proper divisors (111549526).

220136234 is a wasteful number, since it uses less digits than its factorization.

220136234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493804.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 220136234 is about 14836.9887106515. The cubic root of 220136234 is about 603.8056568877.

Adding to 220136234 its reverse (432631022), we get a palindrome (652767256).

The spelling of 220136234 in words is "two hundred twenty million, one hundred thirty-six thousand, two hundred thirty-four".