345226517 has 4 divisors (see below), whose sum is σ = 347222220. Its totient is φ = 343230816.

The previous prime is 345226501. The next prime is 345226529. The reversal of 345226517 is 715622543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 715622543 = 919 ⋅778697.

It can be written as a sum of positive squares in 2 ways, for example, as 211731601 + 133494916 = 14551^2 + 11554^2 .

It is a cyclic number.

It is not a de Polignac number, because 345226517 - 2⁴ = 345226501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345226597) 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, 997592 + ... + 997937.

It is an arithmetic number, because the mean of its divisors is an integer number (86805555).

Almost surely, 2^345226517 is an apocalyptic number.

It is an amenable number.

345226517 is a deficient number, since it is larger than the sum of its proper divisors (1995703).

345226517 is a wasteful number, since it uses less digits than its factorization.

345226517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995702.

The product of its digits is 50400, while the sum is 35.

The square root of 345226517 is about 18580.2722531184. The cubic root of 345226517 is about 701.5113718594.

The spelling of 345226517 in words is "three hundred forty-five million, two hundred twenty-six thousand, five hundred seventeen".