343609521197 has 2 divisors, whose sum is σ = 343609521198. Its totient is φ = 343609521196.

The previous prime is 343609521163. The next prime is 343609521301. The reversal of 343609521197 is 791125906343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278186624356 + 65422896841 = 527434^2 + 255779^2 .

It is a cyclic number.

It is not a de Polignac number, because 343609521197 - 2²⁰ = 343608472621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343609521097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171804760598 + 171804760599.

It is an arithmetic number, because the mean of its divisors is an integer number (171804760599).

Almost surely, 2^343609521197 is an apocalyptic number.

It is an amenable number.

343609521197 is a deficient number, since it is larger than the sum of its proper divisors (1).

343609521197 is an equidigital number, since it uses as much as digits as its factorization.

343609521197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 343609521197 in words is "three hundred forty-three billion, six hundred nine million, five hundred twenty-one thousand, one hundred ninety-seven".