1152211555 has 8 divisors (see below), whose sum is σ = 1508349744. Its totient is φ = 837972000.

The previous prime is 1152211553. The next prime is 1152211559. The reversal of 1152211555 is 5551122511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1152211555 - 2¹ = 1152211553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1152211553) 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, 10474596 + ... + 10474705.

It is an arithmetic number, because the mean of its divisors is an integer number (188543718).

Almost surely, 2^1152211555 is an apocalyptic number.

1152211555 is a deficient number, since it is larger than the sum of its proper divisors (356138189).

1152211555 is a wasteful number, since it uses less digits than its factorization.

1152211555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20949317.

The product of its digits is 2500, while the sum is 28.

The square root of 1152211555 is about 33944.2418533689. The cubic root of 1152211555 is about 1048.3607240042.

The spelling of 1152211555 in words is "one billion, one hundred fifty-two million, two hundred eleven thousand, five hundred fifty-five".