343142291 has 2 divisors, whose sum is σ = 343142292. Its totient is φ = 343142290.

The previous prime is 343142249. The next prime is 343142321. The reversal of 343142291 is 192241343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343142291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343142491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171571145 + 171571146.

It is an arithmetic number, because the mean of its divisors is an integer number (171571146).

Almost surely, 2^343142291 is an apocalyptic number.

343142291 is a deficient number, since it is larger than the sum of its proper divisors (1).

343142291 is an equidigital number, since it uses as much as digits as its factorization.

343142291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 343142291 is about 18524.1002750471. The cubic root of 343142291 is about 700.0967832166.

The spelling of 343142291 in words is "three hundred forty-three million, one hundred forty-two thousand, two hundred ninety-one".