1145005603 has 8 divisors (see below), whose sum is σ = 1315155200. Its totient is φ = 976500360.

The previous prime is 1145005601. The next prime is 1145005613. The reversal of 1145005603 is 3065005411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145005603 - 2¹ = 1145005601 is a prime.

It is a super-2 number, since 2×1145005603² = 2622075661802787218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145005601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409593 + ... + 412378.

It is an arithmetic number, because the mean of its divisors is an integer number (164394400).

Almost surely, 2^1145005603 is an apocalyptic number.

1145005603 is a deficient number, since it is larger than the sum of its proper divisors (170149597).

1145005603 is an equidigital number, since it uses as much as digits as its factorization.

1145005603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822177.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1145005603 is about 33837.9314231825. The cubic root of 1145005603 is about 1046.1706630735.

The spelling of 1145005603 in words is "one billion, one hundred forty-five million, five thousand, six hundred three".