1368155226 has 16 divisors (see below), whose sum is σ = 2738030400. Its totient is φ = 455765088.

The previous prime is 1368155213. The next prime is 1368155237. The reversal of 1368155226 is 6225518631.

It is a super-2 number, since 2×1368155226² = 3743697444862222152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61206 + ... + 80513.

It is an arithmetic number, because the mean of its divisors is an integer number (171126900).

Almost surely, 2^1368155226 is an apocalyptic number.

1368155226 is an abundant number, since it is smaller than the sum of its proper divisors (1369875174).

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

1368155226 is a wasteful number, since it uses less digits than its factorization.

1368155226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143333.

The product of its digits is 86400, while the sum is 39.

The square root of 1368155226 is about 36988.5823734838. The cubic root of 1368155226 is about 1110.1418064102.

The spelling of 1368155226 in words is "one billion, three hundred sixty-eight million, one hundred fifty-five thousand, two hundred twenty-six".