1143504465 has 8 divisors (see below), whose sum is σ = 1829607168. Its totient is φ = 609869040.

The previous prime is 1143504463. The next prime is 1143504559. The reversal of 1143504465 is 5644053411.

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

It is not a de Polignac number, because 1143504465 - 2¹ = 1143504463 is a prime.

It is a super-2 number, since 2×1143504465² = 2615204922949872450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1143504463) 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, 38116801 + ... + 38116830.

It is an arithmetic number, because the mean of its divisors is an integer number (228700896).

Almost surely, 2^1143504465 is an apocalyptic number.

1143504465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143504465 is a deficient number, since it is larger than the sum of its proper divisors (686102703).

1143504465 is an equidigital number, since it uses as much as digits as its factorization.

1143504465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76233639.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1143504465 is about 33815.7428574325. The cubic root of 1143504465 is about 1045.7132756935.

Adding to 1143504465 its reverse (5644053411), we get a palindrome (6787557876).

The spelling of 1143504465 in words is "one billion, one hundred forty-three million, five hundred four thousand, four hundred sixty-five".