345223049 has 4 divisors (see below), whose sum is σ = 353251536. Its totient is φ = 337194564.

The previous prime is 345223019. The next prime is 345223051. The reversal of 345223049 is 940322543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345223049 - 2¹² = 345218953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345223009) 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, 4014179 + ... + 4014264.

It is an arithmetic number, because the mean of its divisors is an integer number (88312884).

Almost surely, 2^345223049 is an apocalyptic number.

It is an amenable number.

345223049 is a deficient number, since it is larger than the sum of its proper divisors (8028487).

345223049 is an equidigital number, since it uses as much as digits as its factorization.

345223049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028486.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 345223049 is about 18580.1789280943. The cubic root of 345223049 is about 701.5090228224.

The spelling of 345223049 in words is "three hundred forty-five million, two hundred twenty-three thousand, forty-nine".