1135603540 has 24 divisors (see below), whose sum is σ = 2392918920. Its totient is φ = 452688768.

The previous prime is 1135603537. The next prime is 1135603543. The reversal of 1135603540 is 453065311.

It is an interprime number because it is at equal distance from previous prime (1135603537) and next prime (1135603543).

It can be written as a sum of positive squares in 4 ways, for example, as 125126596 + 1010476944 = 11186^2 + 31788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1135603499 and 1135603508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135603543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91035 + ... + 102754.

It is an arithmetic number, because the mean of its divisors is an integer number (99704955).

Almost surely, 2^1135603540 is an apocalyptic number.

1135603540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135603540 is an abundant number, since it is smaller than the sum of its proper divisors (1257315380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1135603540 is a wasteful number, since it uses less digits than its factorization.

1135603540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194091 (or 194089 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1135603540 is about 33698.7171862669. The cubic root of 1135603540 is about 1043.2992917495.

Adding to 1135603540 its reverse (453065311), we get a palindrome (1588668851).

The spelling of 1135603540 in words is "one billion, one hundred thirty-five million, six hundred three thousand, five hundred forty".