342449143 has 2 divisors, whose sum is σ = 342449144. Its totient is φ = 342449142.

The previous prime is 342449137. The next prime is 342449161. The reversal of 342449143 is 341944243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342449143 - 2¹⁷ = 342318071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342449099 and 342449108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342449243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171224571 + 171224572.

It is an arithmetic number, because the mean of its divisors is an integer number (171224572).

Almost surely, 2^342449143 is an apocalyptic number.

342449143 is a deficient number, since it is larger than the sum of its proper divisors (1).

342449143 is an equidigital number, since it uses as much as digits as its factorization.

342449143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 342449143 is about 18505.3814605374. The cubic root of 342449143 is about 699.6250665612.

The spelling of 342449143 in words is "three hundred forty-two million, four hundred forty-nine thousand, one hundred forty-three".