1145038984 has 8 divisors (see below), whose sum is σ = 2146948110. Its totient is φ = 572519488.

The previous prime is 1145038981. The next prime is 1145039011. The reversal of 1145038984 is 4898305411.

It can be written as a sum of positive squares in only one way, i.e., 682358884 + 462680100 = 26122^2 + 21510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1145038984² = 2622228549759504512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145038984.

It is not an unprimeable number, because it can be changed into a prime (1145038981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71564929 + ... + 71564944.

Almost surely, 2^1145038984 is an apocalyptic number.

It is an amenable number.

1145038984 is a deficient number, since it is larger than the sum of its proper divisors (1001909126).

1145038984 is a wasteful number, since it uses less digits than its factorization.

1145038984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143129879 (or 143129875 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1145038984 is about 33838.4246678240. The cubic root of 1145038984 is about 1046.1808295110.

The spelling of 1145038984 in words is "one billion, one hundred forty-five million, thirty-eight thousand, nine hundred eighty-four".