155243322 has 48 divisors (see below), whose sum is σ = 374741640. Its totient is φ = 46118016.

The previous prime is 155243321. The next prime is 155243369. The reversal of 155243322 is 223342551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 136399041 + 18844281 = 11679^2 + 4341^2 .

It is not an unprimeable number, because it can be changed into a prime (155243321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4653 + ... + 18224.

Almost surely, 2^155243322 is an apocalyptic number.

155243322 is an abundant number, since it is smaller than the sum of its proper divisors (219498318).

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

155243322 is a wasteful number, since it uses less digits than its factorization.

155243322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22927 (or 22924 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 155243322 is about 12459.6678125863. The cubic root of 155243322 is about 537.4494743926.

Adding to 155243322 its reverse (223342551), we get a palindrome (378585873).

The spelling of 155243322 in words is "one hundred fifty-five million, two hundred forty-three thousand, three hundred twenty-two".