320142299 has 2 divisors, whose sum is σ = 320142300. Its totient is φ = 320142298.

The previous prime is 320142259. The next prime is 320142379. The reversal of 320142299 is 992241023.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320142299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320142259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160071149 + 160071150.

It is an arithmetic number, because the mean of its divisors is an integer number (160071150).

Almost surely, 2^320142299 is an apocalyptic number.

320142299 is a deficient number, since it is larger than the sum of its proper divisors (1).

320142299 is an equidigital number, since it uses as much as digits as its factorization.

320142299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 320142299 is about 17892.5207558913. The cubic root of 320142299 is about 684.0917502574.

The spelling of 320142299 in words is "three hundred twenty million, one hundred forty-two thousand, two hundred ninety-nine".