345112139 has 2 divisors, whose sum is σ = 345112140. Its totient is φ = 345112138.

The previous prime is 345112133. The next prime is 345112169. The reversal of 345112139 is 931211543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345112139 - 2⁴ = 345112123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345112133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172556069 + 172556070.

It is an arithmetic number, because the mean of its divisors is an integer number (172556070).

Almost surely, 2^345112139 is an apocalyptic number.

345112139 is a deficient number, since it is larger than the sum of its proper divisors (1).

345112139 is an equidigital number, since it uses as much as digits as its factorization.

345112139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 345112139 is about 18577.1940561539. The cubic root of 345112139 is about 701.4338900452.

The spelling of 345112139 in words is "three hundred forty-five million, one hundred twelve thousand, one hundred thirty-nine".