1145412988 has 12 divisors (see below), whose sum is σ = 2010153600. Its totient is φ = 571083392.

The previous prime is 1145412979. The next prime is 1145413013. The reversal of 1145412988 is 8892145411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404188 + ... + 407011.

It is an arithmetic number, because the mean of its divisors is an integer number (167512800).

Almost surely, 2^1145412988 is an apocalyptic number.

It is an amenable number.

1145412988 is a deficient number, since it is larger than the sum of its proper divisors (864740612).

1145412988 is a wasteful number, since it uses less digits than its factorization.

1145412988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811556 (or 811554 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 1145412988 is about 33843.9505377253. The cubic root of 1145412988 is about 1046.2947217677.

It can be divided in two parts, 11454 and 12988, that added together give a palindrome (24442).

The spelling of 1145412988 in words is "one billion, one hundred forty-five million, four hundred twelve thousand, nine hundred eighty-eight".