1145004321 has 8 divisors (see below), whose sum is σ = 1538326944. Its totient is φ = 757508960.

The previous prime is 1145004241. The next prime is 1145004337. The reversal of 1145004321 is 1234005411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145004321 is a prime.

It is a super-2 number, since 2×1145004321² = 2622069790217342082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145004121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456356 + ... + 1457141.

It is an arithmetic number, because the mean of its divisors is an integer number (192290868).

Almost surely, 2^1145004321 is an apocalyptic number.

It is an amenable number.

1145004321 is a deficient number, since it is larger than the sum of its proper divisors (393322623).

1145004321 is a wasteful number, since it uses less digits than its factorization.

1145004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913631.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1145004321 is about 33837.9124799388. The cubic root of 1145004321 is about 1046.1702726267.

Adding to 1145004321 its reverse (1234005411), we get a palindrome (2379009732).

The spelling of 1145004321 in words is "one billion, one hundred forty-five million, four thousand, three hundred twenty-one".