142401943 has 2 divisors, whose sum is σ = 142401944. Its totient is φ = 142401942.

The previous prime is 142401881. The next prime is 142401953. The reversal of 142401943 is 349104241.

It is a strong prime.

It is an emirp because it is prime and its reverse (349104241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142401943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142401953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200971 + 71200972.

It is an arithmetic number, because the mean of its divisors is an integer number (71200972).

Almost surely, 2^142401943 is an apocalyptic number.

142401943 is a deficient number, since it is larger than the sum of its proper divisors (1).

142401943 is an equidigital number, since it uses as much as digits as its factorization.

142401943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 142401943 is about 11933.2285237483. The cubic root of 142401943 is about 522.2021293126.

The spelling of 142401943 in words is "one hundred forty-two million, four hundred one thousand, nine hundred forty-three".