1142245255 has 4 divisors (see below), whose sum is σ = 1370694312. Its totient is φ = 913796200.

The previous prime is 1142245229. The next prime is 1142245261. The reversal of 1142245255 is 5525422411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1142245255 - 2²¹ = 1140148103 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 114224521 + ... + 114224530.

It is an arithmetic number, because the mean of its divisors is an integer number (342673578).

Almost surely, 2^1142245255 is an apocalyptic number.

1142245255 is a deficient number, since it is larger than the sum of its proper divisors (228449057).

1142245255 is an equidigital number, since it uses as much as digits as its factorization.

1142245255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228449056.

The product of its digits is 16000, while the sum is 31.

The square root of 1142245255 is about 33797.1190340242. The cubic root of 1142245255 is about 1045.3292934451.

Adding to 1142245255 its reverse (5525422411), we get a palindrome (6667667666).

The spelling of 1142245255 in words is "one billion, one hundred forty-two million, two hundred forty-five thousand, two hundred fifty-five".