1189026226 has 4 divisors (see below), whose sum is σ = 1783539342. Its totient is φ = 594513112.

The previous prime is 1189026217. The next prime is 1189026271. The reversal of 1189026226 is 6226209811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1053327025 + 135699201 = 32455^2 + 11649^2 .

It is a super-2 number, since 2×1189026226² = 2827566732231606152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297256555 + ... + 297256558.

Almost surely, 2^1189026226 is an apocalyptic number.

1189026226 is a deficient number, since it is larger than the sum of its proper divisors (594513116).

1189026226 is an equidigital number, since it uses as much as digits as its factorization.

1189026226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594513115.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1189026226 is about 34482.2595837338. The cubic root of 1189026226 is about 1059.4093737085.

The spelling of 1189026226 in words is "one billion, one hundred eighty-nine million, twenty-six thousand, two hundred twenty-six".