155330226 has 24 divisors (see below), whose sum is σ = 336802284. Its totient is φ = 51737760.

The previous prime is 155330221. The next prime is 155330239. The reversal of 155330226 is 622033551.

It can be written as a sum of positive squares in 2 ways, for example, as 118788201 + 36542025 = 10899^2 + 6045^2 .

It is a super-2 number, since 2×155330226² = 48254958218422152, 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 155330226.

It is not an unprimeable number, because it can be changed into a prime (155330221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31180 + ... + 35816.

Almost surely, 2^155330226 is an apocalyptic number.

155330226 is an abundant number, since it is smaller than the sum of its proper divisors (181472058).

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

155330226 is a wasteful number, since it uses less digits than its factorization.

155330226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506 (or 6503 counting only the distinct ones).

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

The square root of 155330226 is about 12463.1547370640. The cubic root of 155330226 is about 537.5497423588.

Adding to 155330226 its reverse (622033551), we get a palindrome (777363777).

The spelling of 155330226 in words is "one hundred fifty-five million, three hundred thirty thousand, two hundred twenty-six".