1115143255 has 8 divisors (see below), whose sum is σ = 1356503472. Its totient is φ = 879893568.

The previous prime is 1115143219. The next prime is 1115143261. The reversal of 1115143255 is 5523415111.

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 1115143255 - 2²³ = 1106754647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527229 + ... + 1527958.

It is an arithmetic number, because the mean of its divisors is an integer number (169562934).

Almost surely, 2^1115143255 is an apocalyptic number.

1115143255 is a deficient number, since it is larger than the sum of its proper divisors (241360217).

1115143255 is an equidigital number, since it uses as much as digits as its factorization.

1115143255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055265.

The product of its digits is 3000, while the sum is 28.

The square root of 1115143255 is about 33393.7607196314. The cubic root of 1115143255 is about 1036.9955370166.

Adding to 1115143255 its reverse (5523415111), we get a palindrome (6638558366).

The spelling of 1115143255 in words is "one billion, one hundred fifteen million, one hundred forty-three thousand, two hundred fifty-five".