142399343 has 2 divisors, whose sum is σ = 142399344. Its totient is φ = 142399342.

The previous prime is 142399339. The next prime is 142399349. The reversal of 142399343 is 343993241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142399343 - 2² = 142399339 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 142399297 and 142399306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142399349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71199671 + 71199672.

It is an arithmetic number, because the mean of its divisors is an integer number (71199672).

Almost surely, 2^142399343 is an apocalyptic number.

142399343 is a deficient number, since it is larger than the sum of its proper divisors (1).

142399343 is an equidigital number, since it uses as much as digits as its factorization.

142399343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 142399343 is about 11933.1195837467. The cubic root of 142399343 is about 522.1989511401.

The spelling of 142399343 in words is "one hundred forty-two million, three hundred ninety-nine thousand, three hundred forty-three".