1155123152 has 10 divisors (see below), whose sum is σ = 2238051138. Its totient is φ = 577561568.

The previous prime is 1155123139. The next prime is 1155123173. The reversal of 1155123152 is 2513215511.

It can be written as a sum of positive squares in only one way, i.e., 1030666816 + 124456336 = 32104^2 + 11156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36097583 + ... + 36097614.

Almost surely, 2^1155123152 is an apocalyptic number.

It is an amenable number.

1155123152 is a deficient number, since it is larger than the sum of its proper divisors (1082927986).

1155123152 is an equidigital number, since it uses as much as digits as its factorization.

1155123152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72195205 (or 72195199 counting only the distinct ones).

The product of its digits is 1500, while the sum is 26.

The square root of 1155123152 is about 33987.1027303005. The cubic root of 1155123152 is about 1049.2430377958.

Adding to 1155123152 its reverse (2513215511), we get a palindrome (3668338663).

The spelling of 1155123152 in words is "one billion, one hundred fifty-five million, one hundred twenty-three thousand, one hundred fifty-two".