1147159453 has 4 divisors (see below), whose sum is σ = 1251446688. Its totient is φ = 1042872220.

The previous prime is 1147159411. The next prime is 1147159463. The reversal of 1147159453 is 3549517411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1147159453 - 2⁹ = 1147158941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147159463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52143601 + ... + 52143622.

It is an arithmetic number, because the mean of its divisors is an integer number (312861672).

Almost surely, 2^1147159453 is an apocalyptic number.

It is an amenable number.

1147159453 is a deficient number, since it is larger than the sum of its proper divisors (104287235).

1147159453 is a wasteful number, since it uses less digits than its factorization.

1147159453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104287234.

The product of its digits is 75600, while the sum is 40.

The square root of 1147159453 is about 33869.7424407095. The cubic root of 1147159453 is about 1046.8262299615.

The spelling of 1147159453 in words is "one billion, one hundred forty-seven million, one hundred fifty-nine thousand, four hundred fifty-three".