1113530155 has 8 divisors (see below), whose sum is σ = 1338588000. Its totient is φ = 889256256.

The previous prime is 1113530153. The next prime is 1113530161. The reversal of 1113530155 is 5510353111.

It is a happy number.

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 1113530155 - 2¹ = 1113530153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113530153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192855 + ... + 198544.

It is an arithmetic number, because the mean of its divisors is an integer number (167323500).

Almost surely, 2^1113530155 is an apocalyptic number.

1113530155 is a deficient number, since it is larger than the sum of its proper divisors (225057845).

1113530155 is an equidigital number, since it uses as much as digits as its factorization.

1113530155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391973.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1113530155 is about 33369.5992634014. The cubic root of 1113530155 is about 1036.4952770060.

Adding to 1113530155 its reverse (5510353111), we get a palindrome (6623883266).

The spelling of 1113530155 in words is "one billion, one hundred thirteen million, five hundred thirty thousand, one hundred fifty-five".