1159963544 has 8 divisors (see below), whose sum is σ = 2174931660. Its totient is φ = 579981768.

The previous prime is 1159963543. The next prime is 1159963559. The reversal of 1159963544 is 4453699511.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159963543) by changing a digit.

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, 72497714 + ... + 72497729.

Almost surely, 2^1159963544 is an apocalyptic number.

It is an amenable number.

1159963544 is a deficient number, since it is larger than the sum of its proper divisors (1014968116).

1159963544 is a wasteful number, since it uses less digits than its factorization.

1159963544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144995449 (or 144995445 counting only the distinct ones).

The product of its digits is 583200, while the sum is 47.

The square root of 1159963544 is about 34058.2375351397. The cubic root of 1159963544 is about 1050.7065672109.

The spelling of 1159963544 in words is "one billion, one hundred fifty-nine million, nine hundred sixty-three thousand, five hundred forty-four".