1163203045 has 16 divisors (see below), whose sum is σ = 1409284800. Its totient is φ = 921642624.

The previous prime is 1163203043. The next prime is 1163203051. The reversal of 1163203045 is 5403023611.

It is a cyclic number.

It is not a de Polignac number, because 1163203045 - 2¹ = 1163203043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163203043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247881 + ... + 252529.

It is an arithmetic number, because the mean of its divisors is an integer number (88080300).

Almost surely, 2^1163203045 is an apocalyptic number.

It is an amenable number.

1163203045 is a deficient number, since it is larger than the sum of its proper divisors (246081755).

1163203045 is a wasteful number, since it uses less digits than its factorization.

1163203045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1163203045 is about 34105.7626362467. The cubic root of 1163203045 is about 1051.6837821891.

Adding to 1163203045 its reverse (5403023611), we get a palindrome (6566226656).

The spelling of 1163203045 in words is "one billion, one hundred sixty-three million, two hundred three thousand, forty-five".