1153530045 has 32 divisors (see below), whose sum is σ = 2055715200. Its totient is φ = 613717632.

The previous prime is 1153530043. The next prime is 1153530073. The reversal of 1153530045 is 5400353511.

1153530045 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1153530045 - 2¹ = 1153530043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153530041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46369 + ... + 66761.

It is an arithmetic number, because the mean of its divisors is an integer number (64241100).

Almost surely, 2^1153530045 is an apocalyptic number.

1153530045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1153530045 is a deficient number, since it is larger than the sum of its proper divisors (902185155).

1153530045 is a wasteful number, since it uses less digits than its factorization.

1153530045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20826 (or 20820 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1153530045 is about 33963.6577093811. The cubic root of 1153530045 is about 1048.7604556382.

Adding to 1153530045 its reverse (5400353511), we get a palindrome (6553883556).

The spelling of 1153530045 in words is "one billion, one hundred fifty-three million, five hundred thirty thousand, forty-five".