346139 has 2 divisors, whose sum is σ = 346140. Its totient is φ = 346138.

The previous prime is 346133. The next prime is 346141. The reversal of 346139 is 931643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346139 - 2¹⁶ = 280603 is a prime.

Together with 346141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (346133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173069 + 173070.

It is an arithmetic number, because the mean of its divisors is an integer number (173070).

2³⁴⁶¹³⁹ is an apocalyptic number.

346139 is a deficient number, since it is larger than the sum of its proper divisors (1).

346139 is an equidigital number, since it uses as much as digits as its factorization.

346139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 346139 is about 588.3357884746. The cubic root of 346139 is about 70.2128893035.

The spelling of 346139 in words is "three hundred forty-six thousand, one hundred thirty-nine".