349292123 has 4 divisors (see below), whose sum is σ = 349345800. Its totient is φ = 349238448.

The previous prime is 349292117. The next prime is 349292131. The reversal of 349292123 is 321292943.

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

It is a cyclic number.

It is not a de Polignac number, because 349292123 - 2⁴ = 349292107 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349222123) 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, 15473 + ... + 30626.

It is an arithmetic number, because the mean of its divisors is an integer number (87336450).

Almost surely, 2^349292123 is an apocalyptic number.

349292123 is a deficient number, since it is larger than the sum of its proper divisors (53677).

349292123 is an equidigital number, since it uses as much as digits as its factorization.

349292123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53676.

The product of its digits is 23328, while the sum is 35.

The square root of 349292123 is about 18689.3585497202. The cubic root of 349292123 is about 704.2544458122.

The spelling of 349292123 in words is "three hundred forty-nine million, two hundred ninety-two thousand, one hundred twenty-three".