346142189 has 4 divisors (see below), whose sum is σ = 346455420. Its totient is φ = 345828960.

The previous prime is 346142179. The next prime is 346142197. The reversal of 346142189 is 981241643.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155426089 + 190716100 = 12467^2 + 13810^2 .

It is a cyclic number.

It is not a de Polignac number, because 346142189 - 2⁸ = 346141933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346142179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154952 + ... + 157169.

It is an arithmetic number, because the mean of its divisors is an integer number (86613855).

Almost surely, 2^346142189 is an apocalyptic number.

It is an amenable number.

346142189 is a deficient number, since it is larger than the sum of its proper divisors (313231).

346142189 is a wasteful number, since it uses less digits than its factorization.

346142189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313230.

The product of its digits is 41472, while the sum is 38.

The square root of 346142189 is about 18604.8969091473. The cubic root of 346142189 is about 702.1310492809.

The spelling of 346142189 in words is "three hundred forty-six million, one hundred forty-two thousand, one hundred eighty-nine".