1155542984 has 8 divisors (see below), whose sum is σ = 2166643110. Its totient is φ = 577771488.

The previous prime is 1155542957. The next prime is 1155543043. The reversal of 1155542984 is 4892455511.

It can be written as a sum of positive squares in only one way, i.e., 1149888100 + 5654884 = 33910^2 + 2378^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72221429 + ... + 72221444.

Almost surely, 2^1155542984 is an apocalyptic number.

It is an amenable number.

1155542984 is a deficient number, since it is larger than the sum of its proper divisors (1011100126).

1155542984 is a wasteful number, since it uses less digits than its factorization.

1155542984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144442879 (or 144442875 counting only the distinct ones).

The product of its digits is 288000, while the sum is 44.

The square root of 1155542984 is about 33993.2785120824. The cubic root of 1155542984 is about 1049.3701389467.

The spelling of 1155542984 in words is "one billion, one hundred fifty-five million, five hundred forty-two thousand, nine hundred eighty-four".