1142365243 has 2 divisors, whose sum is σ = 1142365244. Its totient is φ = 1142365242.

The previous prime is 1142365241. The next prime is 1142365309. The reversal of 1142365243 is 3425632411.

It is a weak prime.

It is an emirp because it is prime and its reverse (3425632411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142365243 - 2¹ = 1142365241 is a prime.

Together with 1142365241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1142365241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571182621 + 571182622.

It is an arithmetic number, because the mean of its divisors is an integer number (571182622).

Almost surely, 2^1142365243 is an apocalyptic number.

1142365243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142365243 is an equidigital number, since it uses as much as digits as its factorization.

1142365243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 1142365243 is about 33798.8941091273. The cubic root of 1142365243 is about 1045.3658946272.

Adding to 1142365243 its reverse (3425632411), we get a palindrome (4567997654).

The spelling of 1142365243 in words is "one billion, one hundred forty-two million, three hundred sixty-five thousand, two hundred forty-three".