1163521445 has 8 divisors (see below), whose sum is σ = 1399873536. Its totient is φ = 928385296.

The previous prime is 1163521439. The next prime is 1163521511. The reversal of 1163521445 is 5441253611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1163521445 - 2¹⁴ = 1163505061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301877 + ... + 305706.

It is an arithmetic number, because the mean of its divisors is an integer number (174984192).

Almost surely, 2^1163521445 is an apocalyptic number.

It is an amenable number.

1163521445 is a deficient number, since it is larger than the sum of its proper divisors (236352091).

1163521445 is an equidigital number, since it uses as much as digits as its factorization.

1163521445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607971.

The product of its digits is 14400, while the sum is 32.

The square root of 1163521445 is about 34110.4301497357. The cubic root of 1163521445 is about 1051.7797314932.

The spelling of 1163521445 in words is "one billion, one hundred sixty-three million, five hundred twenty-one thousand, four hundred forty-five".