1152005155 has 8 divisors (see below), whose sum is σ = 1579892832. Its totient is φ = 789946368.

The previous prime is 1152005087. The next prime is 1152005161. The reversal of 1152005155 is 5515002511.

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 1152005155 - 2¹¹ = 1152003107 is a prime.

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, 16457182 + ... + 16457251.

It is an arithmetic number, because the mean of its divisors is an integer number (197486604).

Almost surely, 2^1152005155 is an apocalyptic number.

1152005155 is a deficient number, since it is larger than the sum of its proper divisors (427887677).

1152005155 is an equidigital number, since it uses as much as digits as its factorization.

1152005155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32914445.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 1152005155 is about 33941.2014371913. The cubic root of 1152005155 is about 1048.2981213296.

Adding to 1152005155 its reverse (5515002511), we get a palindrome (6667007666).

The spelling of 1152005155 in words is "one billion, one hundred fifty-two million, five thousand, one hundred fifty-five".