1147153521 has 8 divisors (see below), whose sum is σ = 1530973120. Its totient is φ = 764051472.

The previous prime is 1147153453. The next prime is 1147153531. The reversal of 1147153521 is 1253517411.

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

It is a de Polignac number, because none of the positive numbers 2^k-1147153521 is a prime.

It is a super-2 number, since 2×1147153521² = 2631922401485394882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147153531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175645 + ... + 182058.

It is an arithmetic number, because the mean of its divisors is an integer number (191371640).

Almost surely, 2^1147153521 is an apocalyptic number.

It is an amenable number.

1147153521 is a deficient number, since it is larger than the sum of its proper divisors (383819599).

1147153521 is a wasteful number, since it uses less digits than its factorization.

1147153521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358775.

The product of its digits is 4200, while the sum is 30.

The square root of 1147153521 is about 33869.6548698093. The cubic root of 1147153521 is about 1046.8244255672.

The spelling of 1147153521 in words is "one billion, one hundred forty-seven million, one hundred fifty-three thousand, five hundred twenty-one".