346021133 has 2 divisors, whose sum is σ = 346021134. Its totient is φ = 346021132.

The previous prime is 346021087. The next prime is 346021147. The reversal of 346021133 is 331120643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207417604 + 138603529 = 14402^2 + 11773^2 .

It is a cyclic number.

It is not a de Polignac number, because 346021133 - 2¹⁸ = 345758989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 346021099 and 346021108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346021633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173010566 + 173010567.

It is an arithmetic number, because the mean of its divisors is an integer number (173010567).

Almost surely, 2^346021133 is an apocalyptic number.

It is an amenable number.

346021133 is a deficient number, since it is larger than the sum of its proper divisors (1).

346021133 is an equidigital number, since it uses as much as digits as its factorization.

346021133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 346021133 is about 18601.6432876238. The cubic root of 346021133 is about 702.0491878479.

Adding to 346021133 its reverse (331120643), we get a palindrome (677141776).

The spelling of 346021133 in words is "three hundred forty-six million, twenty-one thousand, one hundred thirty-three".