1143215355 has 8 divisors (see below), whose sum is σ = 1829144592. Its totient is φ = 609714848.

The previous prime is 1143215347. The next prime is 1143215383. The reversal of 1143215355 is 5535123411.

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 1143215355 - 2³ = 1143215347 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38107164 + ... + 38107193.

It is an arithmetic number, because the mean of its divisors is an integer number (228643074).

Almost surely, 2^1143215355 is an apocalyptic number.

1143215355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143215355 is a deficient number, since it is larger than the sum of its proper divisors (685929237).

1143215355 is an equidigital number, since it uses as much as digits as its factorization.

1143215355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76214365.

The product of its digits is 9000, while the sum is 30.

The square root of 1143215355 is about 33811.4678030990. The cubic root of 1143215355 is about 1045.6251397171.

Adding to 1143215355 its reverse (5535123411), we get a palindrome (6678338766).

The spelling of 1143215355 in words is "one billion, one hundred forty-three million, two hundred fifteen thousand, three hundred fifty-five".