1145724164 has 48 divisors (see below), whose sum is σ = 2280875520. Its totient is φ = 499806720.

The previous prime is 1145724113. The next prime is 1145724191. The reversal of 1145724164 is 4614275411.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61052 + ... + 77580.

It is an arithmetic number, because the mean of its divisors is an integer number (47518240).

Almost surely, 2^1145724164 is an apocalyptic number.

It is an amenable number.

1145724164 is a deficient number, since it is larger than the sum of its proper divisors (1135151356).

1145724164 is a wasteful number, since it uses less digits than its factorization.

1145724164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16620 (or 16618 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 1145724164 is about 33848.5474429849. The cubic root of 1145724164 is about 1046.3894626546.

Adding to 1145724164 its reverse (4614275411), we get a palindrome (5759999575).

The spelling of 1145724164 in words is "one billion, one hundred forty-five million, seven hundred twenty-four thousand, one hundred sixty-four".