345226529 has 2 divisors, whose sum is σ = 345226530. Its totient is φ = 345226528.

The previous prime is 345226501. The next prime is 345226591. The reversal of 345226529 is 925622543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284698129 + 60528400 = 16873^2 + 7780^2 .

It is an emirp because it is prime and its reverse (925622543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345226529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345226492 and 345226501.

It is not a weakly prime, because it can be changed into another prime (345226229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172613264 + 172613265.

It is an arithmetic number, because the mean of its divisors is an integer number (172613265).

Almost surely, 2^345226529 is an apocalyptic number.

It is an amenable number.

345226529 is a deficient number, since it is larger than the sum of its proper divisors (1).

345226529 is an equidigital number, since it uses as much as digits as its factorization.

345226529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 38.

The square root of 345226529 is about 18580.2725760415. The cubic root of 345226529 is about 701.5113799876.

The spelling of 345226529 in words is "three hundred forty-five million, two hundred twenty-six thousand, five hundred twenty-nine".