226020155 has 8 divisors (see below), whose sum is σ = 271471200. Its totient is φ = 180651456.

The previous prime is 226020139. The next prime is 226020187. The reversal of 226020155 is 551020622.

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 226020155 - 2⁴ = 226020139 is a prime.

It is a super-2 number, since 2×226020155² = 102170220932448050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 226020155.

It is an unprimeable number.

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, 14375 + ... + 25664.

It is an arithmetic number, because the mean of its divisors is an integer number (33933900).

Almost surely, 2^226020155 is an apocalyptic number.

226020155 is a deficient number, since it is larger than the sum of its proper divisors (45451045).

226020155 is a wasteful number, since it uses less digits than its factorization.

226020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41173.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 226020155 is about 15033.9667087565. The cubic root of 226020155 is about 609.1380417465.

Adding to 226020155 its reverse (551020622), we get a palindrome (777040777).

The spelling of 226020155 in words is "two hundred twenty-six million, twenty thousand, one hundred fifty-five".