1147432456 has 32 divisors (see below), whose sum is σ = 2212056000. Its totient is φ = 557585856.

The previous prime is 1147432453. The next prime is 1147432483. The reversal of 1147432456 is 6542347411.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1147432453) 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, 371125 + ... + 374203.

It is an arithmetic number, because the mean of its divisors is an integer number (69126750).

Almost surely, 2^1147432456 is an apocalyptic number.

It is an amenable number.

1147432456 is a deficient number, since it is larger than the sum of its proper divisors (1064623544).

1147432456 is a wasteful number, since it uses less digits than its factorization.

1147432456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381 (or 4377 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 1147432456 is about 33873.7723910402. The cubic root of 1147432456 is about 1046.9092652166.

Adding to 1147432456 its reverse (6542347411), we get a palindrome (7689779867).

The spelling of 1147432456 in words is "one billion, one hundred forty-seven million, four hundred thirty-two thousand, four hundred fifty-six".