1150531055 has 8 divisors (see below), whose sum is σ = 1425174144. Its totient is φ = 890733600.

The previous prime is 1150531051. The next prime is 1150531121. The reversal of 1150531055 is 5501350511.

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

It is not a de Polignac number, because 1150531055 - 2² = 1150531051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150531051) 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, 3711236 + ... + 3711545.

It is an arithmetic number, because the mean of its divisors is an integer number (178146768).

Almost surely, 2^1150531055 is an apocalyptic number.

1150531055 is a deficient number, since it is larger than the sum of its proper divisors (274643089).

1150531055 is an equidigital number, since it uses as much as digits as its factorization.

1150531055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422817.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 1150531055 is about 33919.4789906921. The cubic root of 1150531055 is about 1047.8507981440.

Adding to 1150531055 its reverse (5501350511), we get a palindrome (6651881566).

The spelling of 1150531055 in words is "one billion, one hundred fifty million, five hundred thirty-one thousand, fifty-five".