1151323255 has 8 divisors (see below), whose sum is σ = 1415285424. Its totient is φ = 898593600.

The previous prime is 1151323253. The next prime is 1151323273. The reversal of 1151323255 is 5523231511.

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

It is not a de Polignac number, because 1151323255 - 2¹ = 1151323253 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 (1151323253) 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, 2807901 + ... + 2808310.

It is an arithmetic number, because the mean of its divisors is an integer number (176910678).

Almost surely, 2^1151323255 is an apocalyptic number.

1151323255 is a deficient number, since it is larger than the sum of its proper divisors (263962169).

1151323255 is an equidigital number, since it uses as much as digits as its factorization.

1151323255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616257.

The product of its digits is 4500, while the sum is 28.

The square root of 1151323255 is about 33931.1546369999. The cubic root of 1151323255 is about 1048.0912427478.

Adding to 1151323255 its reverse (5523231511), we get a palindrome (6674554766).

The spelling of 1151323255 in words is "one billion, one hundred fifty-one million, three hundred twenty-three thousand, two hundred fifty-five".