1153984894 has 16 divisors (see below), whose sum is σ = 1801261440. Its totient is φ = 554019480.

The previous prime is 1153984883. The next prime is 1153984901. The reversal of 1153984894 is 4984893511.

It is a super-2 number, since 2×1153984894² = 2663362271160382472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108642 + ... + 118789.

It is an arithmetic number, because the mean of its divisors is an integer number (112578840).

Almost surely, 2^1153984894 is an apocalyptic number.

1153984894 is a deficient number, since it is larger than the sum of its proper divisors (647276546).

1153984894 is a wasteful number, since it uses less digits than its factorization.

1153984894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227535.

The product of its digits is 1244160, while the sum is 52.

The square root of 1153984894 is about 33970.3531627212. The cubic root of 1153984894 is about 1048.8982832747.

The spelling of 1153984894 in words is "one billion, one hundred fifty-three million, nine hundred eighty-four thousand, eight hundred ninety-four".