354340513 has 2 divisors, whose sum is σ = 354340514. Its totient is φ = 354340512.

The previous prime is 354340501. The next prime is 354340523. The reversal of 354340513 is 315043453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291487329 + 62853184 = 17073^2 + 7928^2 .

It is an emirp because it is prime and its reverse (315043453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354340513 is a prime.

It is not a weakly prime, because it can be changed into another prime (354340523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177170256 + 177170257.

It is an arithmetic number, because the mean of its divisors is an integer number (177170257).

Almost surely, 2^354340513 is an apocalyptic number.

It is an amenable number.

354340513 is a deficient number, since it is larger than the sum of its proper divisors (1).

354340513 is an equidigital number, since it uses as much as digits as its factorization.

354340513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 354340513 is about 18823.9345780844. The cubic root of 354340513 is about 707.6311405197.

Adding to 354340513 its reverse (315043453), we get a palindrome (669383966).

The spelling of 354340513 in words is "three hundred fifty-four million, three hundred forty thousand, five hundred thirteen".