142203739 has 2 divisors, whose sum is σ = 142203740. Its totient is φ = 142203738.

The previous prime is 142203731. The next prime is 142203829. The reversal of 142203739 is 937302241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142203739 - 2³ = 142203731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142203739.

It is not a weakly prime, because it can be changed into another prime (142203731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71101869 + 71101870.

It is an arithmetic number, because the mean of its divisors is an integer number (71101870).

Almost surely, 2^142203739 is an apocalyptic number.

142203739 is a deficient number, since it is larger than the sum of its proper divisors (1).

142203739 is an equidigital number, since it uses as much as digits as its factorization.

142203739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 142203739 is about 11924.9209221697. The cubic root of 142203739 is about 521.9597388735.

The spelling of 142203739 in words is "one hundred forty-two million, two hundred three thousand, seven hundred thirty-nine".