345021107 has 2 divisors, whose sum is σ = 345021108. Its totient is φ = 345021106.

The previous prime is 345021101. The next prime is 345021167. The reversal of 345021107 is 701120543.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345021107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172510553 + 172510554.

It is an arithmetic number, because the mean of its divisors is an integer number (172510554).

Almost surely, 2^345021107 is an apocalyptic number.

345021107 is a deficient number, since it is larger than the sum of its proper divisors (1).

345021107 is an equidigital number, since it uses as much as digits as its factorization.

345021107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 345021107 is about 18574.7437936570. The cubic root of 345021107 is about 701.3722110161.

The spelling of 345021107 in words is "three hundred forty-five million, twenty-one thousand, one hundred seven".