342322921 has 2 divisors, whose sum is σ = 342322922. Its totient is φ = 342322920.

The previous prime is 342322909. The next prime is 342322933. The reversal of 342322921 is 129223243.

It is a balanced prime because it is at equal distance from previous prime (342322909) and next prime (342322933).

It can be written as a sum of positive squares in only one way, i.e., 304328025 + 37994896 = 17445^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 342322921 - 2¹⁵ = 342290153 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342322921.

It is not a weakly prime, because it can be changed into another prime (342322621) 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, 171161460 + 171161461.

It is an arithmetic number, because the mean of its divisors is an integer number (171161461).

Almost surely, 2^342322921 is an apocalyptic number.

It is an amenable number.

342322921 is a deficient number, since it is larger than the sum of its proper divisors (1).

342322921 is an equidigital number, since it uses as much as digits as its factorization.

342322921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 342322921 is about 18501.9707328706. The cubic root of 342322921 is about 699.5390986359.

The spelling of 342322921 in words is "three hundred forty-two million, three hundred twenty-two thousand, nine hundred twenty-one".