342031189 has 2 divisors, whose sum is σ = 342031190. Its totient is φ = 342031188.

The previous prime is 342031187. The next prime is 342031241. The reversal of 342031189 is 981130243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191600964 + 150430225 = 13842^2 + 12265^2 .

It is a cyclic number.

It is not a de Polignac number, because 342031189 - 2¹ = 342031187 is a prime.

Together with 342031187, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 342031189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342031187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171015594 + 171015595.

It is an arithmetic number, because the mean of its divisors is an integer number (171015595).

Almost surely, 2^342031189 is an apocalyptic number.

It is an amenable number.

342031189 is a deficient number, since it is larger than the sum of its proper divisors (1).

342031189 is an equidigital number, since it uses as much as digits as its factorization.

342031189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 342031189 is about 18494.0852436664. The cubic root of 342031189 is about 699.3403234173.

The spelling of 342031189 in words is "three hundred forty-two million, thirty-one thousand, one hundred eighty-nine".