1155440130 has 64 divisors (see below), whose sum is σ = 2989889280. Its totient is φ = 284080896.

The previous prime is 1155440123. The next prime is 1155440159. The reversal of 1155440130 is 310445511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155440130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 565651 + ... + 567689.

It is an arithmetic number, because the mean of its divisors is an integer number (46717020).

Almost surely, 2^1155440130 is an apocalyptic number.

1155440130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155440130 is an abundant number, since it is smaller than the sum of its proper divisors (1834449150).

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

1155440130 is a wasteful number, since it uses less digits than its factorization.

1155440130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1155440130 is about 33991.7656205146. The cubic root of 1155440130 is about 1049.3390034776.

Adding to 1155440130 its reverse (310445511), we get a palindrome (1465885641).

The spelling of 1155440130 in words is "one billion, one hundred fifty-five million, four hundred forty thousand, one hundred thirty".