142730807 has 2 divisors, whose sum is σ = 142730808. Its totient is φ = 142730806.

The previous prime is 142730771. The next prime is 142730821. The reversal of 142730807 is 708037241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142730807 - 2⁶ = 142730743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142730857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71365403 + 71365404.

It is an arithmetic number, because the mean of its divisors is an integer number (71365404).

Almost surely, 2^142730807 is an apocalyptic number.

142730807 is a deficient number, since it is larger than the sum of its proper divisors (1).

142730807 is an equidigital number, since it uses as much as digits as its factorization.

142730807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 142730807 is about 11946.9999162970. Note that the first 4 decimals coincide. The cubic root of 142730807 is about 522.6038126183.

The spelling of 142730807 in words is "one hundred forty-two million, seven hundred thirty thousand, eight hundred seven".