1155653130 has 16 divisors (see below), whose sum is σ = 2773567584. Its totient is φ = 308174160.

The previous prime is 1155653129. The next prime is 1155653171. The reversal of 1155653130 is 313565511.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 38521771 = 1155653130 / (1 + 1 + 5 + 5 + 6 + 5 + 3 + 1 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19260856 + ... + 19260915.

It is an arithmetic number, because the mean of its divisors is an integer number (173347974).

Almost surely, 2^1155653130 is an apocalyptic number.

1155653130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155653130 is an abundant number, since it is smaller than the sum of its proper divisors (1617914454).

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

1155653130 is a wasteful number, since it uses less digits than its factorization.

1155653130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38521781.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 1155653130 is about 33994.8985878764. The cubic root of 1155653130 is about 1049.4034797665.

The spelling of 1155653130 in words is "one billion, one hundred fifty-five million, six hundred fifty-three thousand, one hundred thirty".