346122661 has 2 divisors, whose sum is σ = 346122662. Its totient is φ = 346122660.

The previous prime is 346122659. The next prime is 346122683. The reversal of 346122661 is 166221643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337420161 + 8702500 = 18369^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 346122661 - 2¹ = 346122659 is a prime.

Together with 346122659, it forms a pair of twin primes.

It is equal to p_18606406 and since 346122661 and 18606406 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346122611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173061330 + 173061331.

It is an arithmetic number, because the mean of its divisors is an integer number (173061331).

Almost surely, 2^346122661 is an apocalyptic number.

It is an amenable number.

346122661 is a deficient number, since it is larger than the sum of its proper divisors (1).

346122661 is an equidigital number, since it uses as much as digits as its factorization.

346122661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 346122661 is about 18604.3720936773. The cubic root of 346122661 is about 702.1178451956.

It can be divided in two parts, 34612 and 2661, that added together give a palindrome (37273).

The spelling of 346122661 in words is "three hundred forty-six million, one hundred twenty-two thousand, six hundred sixty-one".