1145188668 has 96 divisors (see below), whose sum is σ = 2936537856. Its totient is φ = 345226752.

The previous prime is 1145188637. The next prime is 1145188679. The reversal of 1145188668 is 8668815411.

It is a super-2 number, since 2×1145188668² = 2622914170631228448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2584855 + ... + 2585297.

It is an arithmetic number, because the mean of its divisors is an integer number (30588936).

Almost surely, 2^1145188668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145188668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468268928).

1145188668 is an abundant number, since it is smaller than the sum of its proper divisors (1791349188).

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

1145188668 is a wasteful number, since it uses less digits than its factorization.

1145188668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 761 counting only the distinct ones).

The product of its digits is 368640, while the sum is 48.

The square root of 1145188668 is about 33840.6363415347. The cubic root of 1145188668 is about 1046.2264144824.

The spelling of 1145188668 in words is "one billion, one hundred forty-five million, one hundred eighty-eight thousand, six hundred sixty-eight".