353401493 has 2 divisors, whose sum is σ = 353401494. Its totient is φ = 353401492.

The previous prime is 353401481. The next prime is 353401547. The reversal of 353401493 is 394104353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332953009 + 20448484 = 18247^2 + 4522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-353401493 is a prime.

It is a super-3 number, since 3×353401493³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353401093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176700746 + 176700747.

It is an arithmetic number, because the mean of its divisors is an integer number (176700747).

Almost surely, 2^353401493 is an apocalyptic number.

It is an amenable number.

353401493 is a deficient number, since it is larger than the sum of its proper divisors (1).

353401493 is an equidigital number, since it uses as much as digits as its factorization.

353401493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 353401493 is about 18798.9758497637. The cubic root of 353401493 is about 707.0055016187.

The spelling of 353401493 in words is "three hundred fifty-three million, four hundred one thousand, four hundred ninety-three".