354903842197 has 2 divisors, whose sum is σ = 354903842198. Its totient is φ = 354903842196.

The previous prime is 354903842143. The next prime is 354903842203. The reversal of 354903842197 is 791248309453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346827944241 + 8075897956 = 588921^2 + 89866^2 .

It is a cyclic number.

It is not a de Polignac number, because 354903842197 - 2³⁵ = 320544103829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354903822197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177451921098 + 177451921099.

It is an arithmetic number, because the mean of its divisors is an integer number (177451921099).

Almost surely, 2^354903842197 is an apocalyptic number.

It is an amenable number.

354903842197 is a deficient number, since it is larger than the sum of its proper divisors (1).

354903842197 is an equidigital number, since it uses as much as digits as its factorization.

354903842197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 354903842197 in words is "three hundred fifty-four billion, nine hundred three million, eight hundred forty-two thousand, one hundred ninety-seven".