1215054226 has 8 divisors (see below), whose sum is σ = 1929792060. Its totient is φ = 571790208.

The previous prime is 1215054221. The next prime is 1215054257. The reversal of 1215054226 is 6224505121.

It can be written as a sum of positive squares in 2 ways, for example, as 1209996225 + 5058001 = 34785^2 + 2249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1215054194 and 1215054203.

It is not an unprimeable number, because it can be changed into a prime (1215054221) 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 3 ways as a sum of consecutive naturals, for example, 17868411 + ... + 17868478.

Almost surely, 2^1215054226 is an apocalyptic number.

1215054226 is a deficient number, since it is larger than the sum of its proper divisors (714737834).

1215054226 is a wasteful number, since it uses less digits than its factorization.

1215054226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35736908.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1215054226 is about 34857.6279456879. The cubic root of 1215054226 is about 1067.0838656867.

Adding to 1215054226 its reverse (6224505121), we get a palindrome (7439559347).

The spelling of 1215054226 in words is "one billion, two hundred fifteen million, fifty-four thousand, two hundred twenty-six".