345305453 has 2 divisors, whose sum is σ = 345305454. Its totient is φ = 345305452.

The previous prime is 345305413. The next prime is 345305459. The reversal of 345305453 is 354503543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203290564 + 142014889 = 14258^2 + 11917^2 .

It is a cyclic number.

It is not a de Polignac number, because 345305453 - 2⁸ = 345305197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345305459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172652726 + 172652727.

It is an arithmetic number, because the mean of its divisors is an integer number (172652727).

Almost surely, 2^345305453 is an apocalyptic number.

It is an amenable number.

345305453 is a deficient number, since it is larger than the sum of its proper divisors (1).

345305453 is an equidigital number, since it uses as much as digits as its factorization.

345305453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 32.

The square root of 345305453 is about 18582.3963201736. The cubic root of 345305453 is about 701.5648346141.

Adding to 345305453 its reverse (354503543), we get a palindrome (699808996).

The spelling of 345305453 in words is "three hundred forty-five million, three hundred five thousand, four hundred fifty-three".