354226273 has 2 divisors, whose sum is σ = 354226274. Its totient is φ = 354226272.

The previous prime is 354226267. The next prime is 354226277. The reversal of 354226273 is 372622453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270832849 + 83393424 = 16457^2 + 9132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354226273 is a prime.

It is a super-3 number, since 3×354226273³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (354226277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177113136 + 177113137.

It is an arithmetic number, because the mean of its divisors is an integer number (177113137).

Almost surely, 2^354226273 is an apocalyptic number.

It is an amenable number.

354226273 is a deficient number, since it is larger than the sum of its proper divisors (1).

354226273 is an equidigital number, since it uses as much as digits as its factorization.

354226273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 34.

The square root of 354226273 is about 18820.8998987827. The cubic root of 354226273 is about 707.5550851740. Note that the first 3 decimals are identical.

The spelling of 354226273 in words is "three hundred fifty-four million, two hundred twenty-six thousand, two hundred seventy-three".