1155501153 has 8 divisors (see below), whose sum is σ = 1711853600. Its totient is φ = 770334084.

The previous prime is 1155501133. The next prime is 1155501167. The reversal of 1155501153 is 3511055511.

1155501153 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 501 + 153 = 666.

It is not a de Polignac number, because 1155501153 - 2⁹ = 1155500641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 42796339 = 1155501153 / (1 + 1 + 5 + 5 + 5 + 0 + 1 + 1 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1155501103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21398143 + ... + 21398196.

It is an arithmetic number, because the mean of its divisors is an integer number (213981700).

Almost surely, 2^1155501153 is an apocalyptic number.

It is an amenable number.

1155501153 is a deficient number, since it is larger than the sum of its proper divisors (556352447).

1155501153 is an equidigital number, since it uses as much as digits as its factorization.

1155501153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42796348 (or 42796342 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 27.

The square root of 1155501153 is about 33992.6632231133. The cubic root of 1155501153 is about 1049.3574762901.

Adding to 1155501153 its reverse (3511055511), we get a palindrome (4666556664).

The spelling of 1155501153 in words is "one billion, one hundred fifty-five million, five hundred one thousand, one hundred fifty-three".