1243132255 has 8 divisors (see below), whose sum is σ = 1512769824. Its totient is φ = 980498400.

The previous prime is 1243132249. The next prime is 1243132277. The reversal of 1243132255 is 5522313421.

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

It is not a de Polignac number, because 1243132255 - 2⁵ = 1243132223 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, 1750536 + ... + 1751245.

It is an arithmetic number, because the mean of its divisors is an integer number (189096228).

Almost surely, 2^1243132255 is an apocalyptic number.

1243132255 is a deficient number, since it is larger than the sum of its proper divisors (269637569).

1243132255 is an equidigital number, since it uses as much as digits as its factorization.

1243132255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501857.

The product of its digits is 7200, while the sum is 28.

The square root of 1243132255 is about 35258.0807049958. The cubic root of 1243132255 is about 1075.2409065282.

Adding to 1243132255 its reverse (5522313421), we get a palindrome (6765445676).

The spelling of 1243132255 in words is "one billion, two hundred forty-three million, one hundred thirty-two thousand, two hundred fifty-five".