1142120237 has 2 divisors, whose sum is σ = 1142120238. Its totient is φ = 1142120236.

The previous prime is 1142120227. The next prime is 1142120249. The reversal of 1142120237 is 7320212411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1124864521 + 17255716 = 33539^2 + 4154^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142120237 - 2⁶ = 1142120173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142120227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571060118 + 571060119.

It is an arithmetic number, because the mean of its divisors is an integer number (571060119).

Almost surely, 2^1142120237 is an apocalyptic number.

It is an amenable number.

1142120237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142120237 is an equidigital number, since it uses as much as digits as its factorization.

1142120237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1142120237 is about 33795.2694470691. The cubic root of 1142120237 is about 1045.2911551833.

Adding to 1142120237 its reverse (7320212411), we get a palindrome (8462332648).

The spelling of 1142120237 in words is "one billion, one hundred forty-two million, one hundred twenty thousand, two hundred thirty-seven".