142344342449 has 2 divisors, whose sum is σ = 142344342450. Its totient is φ = 142344342448.

The previous prime is 142344342431. The next prime is 142344342461. The reversal of 142344342449 is 944243443241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142255700224 + 88642225 = 377168^2 + 9415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142344342449 is a prime.

It is not a weakly prime, because it can be changed into another prime (142344342479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71172171224 + 71172171225.

It is an arithmetic number, because the mean of its divisors is an integer number (71172171225).

Almost surely, 2^142344342449 is an apocalyptic number.

It is an amenable number.

142344342449 is a deficient number, since it is larger than the sum of its proper divisors (1).

142344342449 is an equidigital number, since it uses as much as digits as its factorization.

142344342449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 44.

The spelling of 142344342449 in words is "one hundred forty-two billion, three hundred forty-four million, three hundred forty-two thousand, four hundred forty-nine".