1142255113 has 2 divisors, whose sum is σ = 1142255114. Its totient is φ = 1142255112.

The previous prime is 1142255111. The next prime is 1142255119. The reversal of 1142255113 is 3115522411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1042514944 + 99740169 = 32288^2 + 9987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142255113 - 2¹ = 1142255111 is a prime.

Together with 1142255111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1142255111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571127556 + 571127557.

It is an arithmetic number, because the mean of its divisors is an integer number (571127557).

Almost surely, 2^1142255113 is an apocalyptic number.

It is an amenable number.

1142255113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142255113 is an equidigital number, since it uses as much as digits as its factorization.

1142255113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 1142255113 is about 33797.2648745427. The cubic root of 1142255113 is about 1045.3323006296.

Adding to 1142255113 its reverse (3115522411), we get a palindrome (4257777524).

The spelling of 1142255113 in words is "one billion, one hundred forty-two million, two hundred fifty-five thousand, one hundred thirteen".