343010981 has 2 divisors, whose sum is σ = 343010982. Its totient is φ = 343010980.

The previous prime is 343010977. The next prime is 343011007. The reversal of 343010981 is 189010343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288694081 + 54316900 = 16991^2 + 7370^2 .

It is a cyclic number.

It is not a de Polignac number, because 343010981 - 2² = 343010977 is a prime.

It is a super-2 number, since 2×343010981² = 235313066173164722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343010081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171505490 + 171505491.

It is an arithmetic number, because the mean of its divisors is an integer number (171505491).

Almost surely, 2^343010981 is an apocalyptic number.

It is an amenable number.

343010981 is a deficient number, since it is larger than the sum of its proper divisors (1).

343010981 is an equidigital number, since it uses as much as digits as its factorization.

343010981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 343010981 is about 18520.5556342136. Note that the first 3 decimals coincide. The cubic root of 343010981 is about 700.0074699883.

The spelling of 343010981 in words is "three hundred forty-three million, ten thousand, nine hundred eighty-one".