343425139 has 4 divisors (see below), whose sum is σ = 343735920. Its totient is φ = 343114360.

The previous prime is 343425127. The next prime is 343425151. The reversal of 343425139 is 931524343.

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

It is an interprime number because it is at equal distance from previous prime (343425127) and next prime (343425151).

It is a cyclic number.

It is not a de Polignac number, because 343425139 - 2⁷ = 343425011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343425119) 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, 153727 + ... + 155944.

It is an arithmetic number, because the mean of its divisors is an integer number (85933980).

Almost surely, 2^343425139 is an apocalyptic number.

343425139 is a deficient number, since it is larger than the sum of its proper divisors (310781).

343425139 is a wasteful number, since it uses less digits than its factorization.

343425139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310780.

The product of its digits is 38880, while the sum is 34.

The square root of 343425139 is about 18531.7332972391. The cubic root of 343425139 is about 700.2890907969.

The spelling of 343425139 in words is "three hundred forty-three million, four hundred twenty-five thousand, one hundred thirty-nine".