142241369 has 2 divisors, whose sum is σ = 142241370. Its totient is φ = 142241368.

The previous prime is 142241339. The next prime is 142241371. The reversal of 142241369 is 963142241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88585744 + 53655625 = 9412^2 + 7325^2 .

It is an emirp because it is prime and its reverse (963142241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142241369 - 2¹⁶ = 142175833 is a prime.

It is a super-2 number, since 2×142241369² = 40465214109988322, which contains 22 as substring.

Together with 142241371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142241339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71120684 + 71120685.

It is an arithmetic number, because the mean of its divisors is an integer number (71120685).

Almost surely, 2^142241369 is an apocalyptic number.

It is an amenable number.

142241369 is a deficient number, since it is larger than the sum of its proper divisors (1).

142241369 is an equidigital number, since it uses as much as digits as its factorization.

142241369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 142241369 is about 11926.4986060453. The cubic root of 142241369 is about 522.0057751988.

The spelling of 142241369 in words is "one hundred forty-two million, two hundred forty-one thousand, three hundred sixty-nine".