1155405153 has 96 divisors (see below), whose sum is σ = 1994544000. Its totient is φ = 590370816.

The previous prime is 1155405149. The next prime is 1155405169. The reversal of 1155405153 is 3515045511.

It is not a de Polignac number, because 1155405153 - 2² = 1155405149 is a prime.

It is a super-2 number, since 2×1155405153² = 2669922135157906818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1155405153.

It is not an unprimeable number, because it can be changed into a prime (1155405103) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7754323 + ... + 7754471.

It is an arithmetic number, because the mean of its divisors is an integer number (20776500).

Almost surely, 2^1155405153 is an apocalyptic number.

It is an amenable number.

1155405153 is a deficient number, since it is larger than the sum of its proper divisors (839138847).

1155405153 is a wasteful number, since it uses less digits than its factorization.

1155405153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1155405153 is about 33991.2511243702. The cubic root of 1155405153 is about 1049.3284149870.

The spelling of 1155405153 in words is "one billion, one hundred fifty-five million, four hundred five thousand, one hundred fifty-three".