345197705 has 4 divisors (see below), whose sum is σ = 414237252. Its totient is φ = 276158160.

The previous prime is 345197693. The next prime is 345197761. The reversal of 345197705 is 507791543.

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

It can be written as a sum of positive squares in 2 ways, for example, as 245736976 + 99460729 = 15676^2 + 9973^2 .

It is not a de Polignac number, because 345197705 - 2⁸ = 345197449 is a prime.

It is a super-2 number, since 2×345197705² = 238322911074534050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34519766 + ... + 34519775.

It is an arithmetic number, because the mean of its divisors is an integer number (103559313).

Almost surely, 2^345197705 is an apocalyptic number.

It is an amenable number.

345197705 is a deficient number, since it is larger than the sum of its proper divisors (69039547).

345197705 is an equidigital number, since it uses as much as digits as its factorization.

345197705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69039546.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 345197705 is about 18579.4968984631. The cubic root of 345197705 is about 701.4918556800.

It can be divided in two parts, 34519 and 7705, that added together give a palindrome (42224).

The spelling of 345197705 in words is "three hundred forty-five million, one hundred ninety-seven thousand, seven hundred five".