155323206 has 48 divisors (see below), whose sum is σ = 349614720. Its totient is φ = 49783680.

The previous prime is 155323121. The next prime is 155323247. The reversal of 155323206 is 602323551.

It is a self number, because there is not a number n which added to its sum of digits gives 155323206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95730 + ... + 97338.

It is an arithmetic number, because the mean of its divisors is an integer number (7283640).

Almost surely, 2^155323206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155323206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174807360).

155323206 is an abundant number, since it is smaller than the sum of its proper divisors (194291514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155323206 is a wasteful number, since it uses less digits than its factorization.

155323206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 155323206 is about 12462.8731037430. The cubic root of 155323206 is about 537.5416442225.

Adding to 155323206 its reverse (602323551), we get a palindrome (757646757).

The spelling of 155323206 in words is "one hundred fifty-five million, three hundred twenty-three thousand, two hundred six".