345229481 has 2 divisors, whose sum is σ = 345229482. Its totient is φ = 345229480.

The previous prime is 345229463. The next prime is 345229501. The reversal of 345229481 is 184922543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341917081 + 3312400 = 18491^2 + 1820^2 .

It is a cyclic number.

It is not a de Polignac number, because 345229481 - 2¹⁴ = 345213097 is a prime.

It is a super-2 number, since 2×345229481² = 238366789103058722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (345229441) 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, 172614740 + 172614741.

It is an arithmetic number, because the mean of its divisors is an integer number (172614741).

Almost surely, 2^345229481 is an apocalyptic number.

It is an amenable number.

345229481 is a deficient number, since it is larger than the sum of its proper divisors (1).

345229481 is an equidigital number, since it uses as much as digits as its factorization.

345229481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 345229481 is about 18580.3520149646. The cubic root of 345229481 is about 701.5133795014.

The spelling of 345229481 in words is "three hundred forty-five million, two hundred twenty-nine thousand, four hundred eighty-one".