354221407597 has 2 divisors, whose sum is σ = 354221407598. Its totient is φ = 354221407596.

The previous prime is 354221407489. The next prime is 354221407619. The reversal of 354221407597 is 795704122453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297105665476 + 57115742121 = 545074^2 + 238989^2 .

It is a cyclic number.

It is not a de Polignac number, because 354221407597 - 2¹⁹ = 354220883309 is a prime.

It is a super-3 number, since 3×354221407597³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 354221407597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354221407997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177110703798 + 177110703799.

It is an arithmetic number, because the mean of its divisors is an integer number (177110703799).

Almost surely, 2^354221407597 is an apocalyptic number.

It is an amenable number.

354221407597 is a deficient number, since it is larger than the sum of its proper divisors (1).

354221407597 is an equidigital number, since it uses as much as digits as its factorization.

354221407597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 354221407597 in words is "three hundred fifty-four billion, two hundred twenty-one million, four hundred seven thousand, five hundred ninety-seven".