220630136 has 8 divisors (see below), whose sum is σ = 413681520. Its totient is φ = 110315064.

The previous prime is 220630121. The next prime is 220630139. The reversal of 220630136 is 631036022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×220630136² = 97355313822756992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220630139) 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 as a sum of consecutive naturals, namely, 13789376 + ... + 13789391.

It is an arithmetic number, because the mean of its divisors is an integer number (51710190).

Almost surely, 2^220630136 is an apocalyptic number.

It is an amenable number.

220630136 is a deficient number, since it is larger than the sum of its proper divisors (193051384).

220630136 is a wasteful number, since it uses less digits than its factorization.

220630136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27578773 (or 27578769 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 220630136 is about 14853.6236656245. The cubic root of 220630136 is about 604.2568896877.

Adding to 220630136 its reverse (631036022), we get a palindrome (851666158).

The spelling of 220630136 in words is "two hundred twenty million, six hundred thirty thousand, one hundred thirty-six".