343041581 has 2 divisors, whose sum is σ = 343041582. Its totient is φ = 343041580.

The previous prime is 343041557. The next prime is 343041607. The reversal of 343041581 is 185140343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181980100 + 161061481 = 13490^2 + 12691^2 .

It is a cyclic number.

It is not a de Polignac number, because 343041581 - 2¹⁰ = 343040557 is a prime.

It is a super-2 number, since 2×343041581² = 235355052589959122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343541581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171520790 + 171520791.

It is an arithmetic number, because the mean of its divisors is an integer number (171520791).

Almost surely, 2^343041581 is an apocalyptic number.

It is an amenable number.

343041581 is a deficient number, since it is larger than the sum of its proper divisors (1).

343041581 is an equidigital number, since it uses as much as digits as its factorization.

343041581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 343041581 is about 18521.3817249146. The cubic root of 343041581 is about 700.0282852516.

The spelling of 343041581 in words is "three hundred forty-three million, forty-one thousand, five hundred eighty-one".