340524313 has 2 divisors, whose sum is σ = 340524314. Its totient is φ = 340524312.

The previous prime is 340524271. The next prime is 340524337. The reversal of 340524313 is 313425043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314991504 + 25532809 = 17748^2 + 5053^2 .

It is an emirp because it is prime and its reverse (313425043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340524313 is a prime.

It is not a weakly prime, because it can be changed into another prime (340524343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170262156 + 170262157.

It is an arithmetic number, because the mean of its divisors is an integer number (170262157).

Almost surely, 2^340524313 is an apocalyptic number.

It is an amenable number.

340524313 is a deficient number, since it is larger than the sum of its proper divisors (1).

340524313 is an equidigital number, since it uses as much as digits as its factorization.

340524313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 340524313 is about 18453.3008700341. The cubic root of 340524313 is about 698.3117909571.

Adding to 340524313 its reverse (313425043), we get a palindrome (653949356).

The spelling of 340524313 in words is "three hundred forty million, five hundred twenty-four thousand, three hundred thirteen".