342124309 has 2 divisors, whose sum is σ = 342124310. Its totient is φ = 342124308.

The previous prime is 342124301. The next prime is 342124319. The reversal of 342124309 is 903421243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334780209 + 7344100 = 18297^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 342124309 - 2³ = 342124301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342124301) 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, 171062154 + 171062155.

It is an arithmetic number, because the mean of its divisors is an integer number (171062155).

Almost surely, 2^342124309 is an apocalyptic number.

It is an amenable number.

342124309 is a deficient number, since it is larger than the sum of its proper divisors (1).

342124309 is an equidigital number, since it uses as much as digits as its factorization.

342124309 is an odious number, because the sum of its binary digits is odd.

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

The square root of 342124309 is about 18496.6026339974. The cubic root of 342124309 is about 699.4037841619.

It can be divided in two parts, 3421 and 24309, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 342124309 in words is "three hundred forty-two million, one hundred twenty-four thousand, three hundred nine".