155222326 has 32 divisors (see below), whose sum is σ = 282738240. Its totient is φ = 62487936.

The previous prime is 155222323. The next prime is 155222357. The reversal of 155222326 is 623222551.

It is a junction number, because it is equal to n+sod(n) for n = 155222294 and 155222303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155222323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9856 + ... + 20188.

It is an arithmetic number, because the mean of its divisors is an integer number (8835570).

Almost surely, 2^155222326 is an apocalyptic number.

155222326 is a deficient number, since it is larger than the sum of its proper divisors (127515914).

155222326 is a wasteful number, since it uses less digits than its factorization.

155222326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10408.

The product of its digits is 7200, while the sum is 28.

The square root of 155222326 is about 12458.8252255179. The cubic root of 155222326 is about 537.4252440472.

Adding to 155222326 its reverse (623222551), we get a palindrome (778444877).

The spelling of 155222326 in words is "one hundred fifty-five million, two hundred twenty-two thousand, three hundred twenty-six".