343146491 has 2 divisors, whose sum is σ = 343146492. Its totient is φ = 343146490.

The previous prime is 343146467. The next prime is 343146511. The reversal of 343146491 is 194641343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343146491 is a prime.

It is a super-2 number, since 2×343146491² = 235499028571226162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343146091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171573245 + 171573246.

It is an arithmetic number, because the mean of its divisors is an integer number (171573246).

Almost surely, 2^343146491 is an apocalyptic number.

343146491 is a deficient number, since it is larger than the sum of its proper divisors (1).

343146491 is an equidigital number, since it uses as much as digits as its factorization.

343146491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 343146491 is about 18524.2136405301. The cubic root of 343146491 is about 700.0996395579.

The spelling of 343146491 in words is "three hundred forty-three million, one hundred forty-six thousand, four hundred ninety-one".