345122047 has 2 divisors, whose sum is σ = 345122048. Its totient is φ = 345122046.

The previous prime is 345122017. The next prime is 345122087. The reversal of 345122047 is 740221543.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345122047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345122017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172561023 + 172561024.

It is an arithmetic number, because the mean of its divisors is an integer number (172561024).

Almost surely, 2^345122047 is an apocalyptic number.

345122047 is a deficient number, since it is larger than the sum of its proper divisors (1).

345122047 is an equidigital number, since it uses as much as digits as its factorization.

345122047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 345122047 is about 18577.4607252983. The cubic root of 345122047 is about 701.4406025885.

The spelling of 345122047 in words is "three hundred forty-five million, one hundred twenty-two thousand, forty-seven".