344121493 has 2 divisors, whose sum is σ = 344121494. Its totient is φ = 344121492.

The previous prime is 344121473. The next prime is 344121517. The reversal of 344121493 is 394121443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297976644 + 46144849 = 17262^2 + 6793^2 .

It is a cyclic number.

It is not a de Polignac number, because 344121493 - 2⁵ = 344121461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344121433) 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, 172060746 + 172060747.

It is an arithmetic number, because the mean of its divisors is an integer number (172060747).

Almost surely, 2^344121493 is an apocalyptic number.

It is an amenable number.

344121493 is a deficient number, since it is larger than the sum of its proper divisors (1).

344121493 is an equidigital number, since it uses as much as digits as its factorization.

344121493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 344121493 is about 18550.5119336368. The cubic root of 344121493 is about 700.7620904188.

The spelling of 344121493 in words is "three hundred forty-four million, one hundred twenty-one thousand, four hundred ninety-three".