1155421114 has 8 divisors (see below), whose sum is σ = 1739876148. Its totient is φ = 575462400.

The previous prime is 1155421093. The next prime is 1155421153. The reversal of 1155421114 is 4111245511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 672520489 + 482900625 = 25933^2 + 21975^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 1123437 + ... + 1124464.

Almost surely, 2^1155421114 is an apocalyptic number.

1155421114 is a deficient number, since it is larger than the sum of its proper divisors (584455034).

1155421114 is a wasteful number, since it uses less digits than its factorization.

1155421114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248160.

The product of its digits is 800, while the sum is 25.

The square root of 1155421114 is about 33991.4859045615. The cubic root of 1155421114 is about 1049.3332468430. Note that the first 3 decimals are identical.

Adding to 1155421114 its reverse (4111245511), we get a palindrome (5266666625).

The spelling of 1155421114 in words is "one billion, one hundred fifty-five million, four hundred twenty-one thousand, one hundred fourteen".