345020611 has 4 divisors (see below), whose sum is σ = 371560672. Its totient is φ = 318480552.

The previous prime is 345020603. The next prime is 345020623. The reversal of 345020611 is 116020543.

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

It is not a de Polignac number, because 345020611 - 2³ = 345020603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345020651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13270011 + ... + 13270036.

It is an arithmetic number, because the mean of its divisors is an integer number (92890168).

Almost surely, 2^345020611 is an apocalyptic number.

345020611 is a deficient number, since it is larger than the sum of its proper divisors (26540061).

345020611 is a wasteful number, since it uses less digits than its factorization.

345020611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26540060.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 345020611 is about 18574.7304421895. The cubic root of 345020611 is about 701.3718749200.

The spelling of 345020611 in words is "three hundred forty-five million, twenty thousand, six hundred eleven".