353645131613 has 2 divisors, whose sum is σ = 353645131614. Its totient is φ = 353645131612.

The previous prime is 353645131571. The next prime is 353645131621. The reversal of 353645131613 is 316131546353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252243008644 + 101402122969 = 502238^2 + 318437^2 .

It is a cyclic number.

It is not a de Polignac number, because 353645131613 - 2¹⁶ = 353645066077 is a prime.

It is a super-2 number, since 2×353645131613² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353645131643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176822565806 + 176822565807.

It is an arithmetic number, because the mean of its divisors is an integer number (176822565807).

Almost surely, 2^353645131613 is an apocalyptic number.

It is an amenable number.

353645131613 is a deficient number, since it is larger than the sum of its proper divisors (1).

353645131613 is an equidigital number, since it uses as much as digits as its factorization.

353645131613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 41.

Adding to 353645131613 its reverse (316131546353), we get a palindrome (669776677966).

The spelling of 353645131613 in words is "three hundred fifty-three billion, six hundred forty-five million, one hundred thirty-one thousand, six hundred thirteen".