1145145288 has 64 divisors (see below), whose sum is σ = 3338640000. Its totient is φ = 327182016.

The previous prime is 1145145269. The next prime is 1145145299. The reversal of 1145145288 is 8825415411.

It is a super-2 number, since 2×1145145288² = 2622715461257205888, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 61323 + ... + 77786.

It is an arithmetic number, because the mean of its divisors is an integer number (52166250).

Almost surely, 2^1145145288 is an apocalyptic number.

It is an amenable number.

1145145288 is an abundant number, since it is smaller than the sum of its proper divisors (2193494712).

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

1145145288 is a wasteful number, since it uses less digits than its factorization.

1145145288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139139 (or 139121 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The square root of 1145145288 is about 33839.9953900706. The cubic root of 1145145288 is about 1046.2132038863.

The spelling of 1145145288 in words is "one billion, one hundred forty-five million, one hundred forty-five thousand, two hundred eighty-eight".