142702323209 has 2 divisors, whose sum is σ = 142702323210. Its totient is φ = 142702323208.

The previous prime is 142702323199. The next prime is 142702323223. The reversal of 142702323209 is 902323207241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75933313600 + 66769009609 = 275560^2 + 258397^2 .

It is a cyclic number.

It is not a de Polignac number, because 142702323209 - 2⁴ = 142702323193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (142702323109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71351161604 + 71351161605.

It is an arithmetic number, because the mean of its divisors is an integer number (71351161605).

Almost surely, 2^142702323209 is an apocalyptic number.

It is an amenable number.

142702323209 is a deficient number, since it is larger than the sum of its proper divisors (1).

142702323209 is an equidigital number, since it uses as much as digits as its factorization.

142702323209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 142702323209 in words is "one hundred forty-two billion, seven hundred two million, three hundred twenty-three thousand, two hundred nine".