345353369 has 2 divisors, whose sum is σ = 345353370. Its totient is φ = 345353368.

The previous prime is 345353363. The next prime is 345353381. The reversal of 345353369 is 963353543.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299290000 + 46063369 = 17300^2 + 6787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345353369 is a prime.

It is a super-2 number, since 2×345353369² = 238537898959300322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345353363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172676684 + 172676685.

It is an arithmetic number, because the mean of its divisors is an integer number (172676685).

Almost surely, 2^345353369 is an apocalyptic number.

It is an amenable number.

345353369 is a deficient number, since it is larger than the sum of its proper divisors (1).

345353369 is an equidigital number, since it uses as much as digits as its factorization.

345353369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 41.

The square root of 345353369 is about 18583.6855601896. The cubic root of 345353369 is about 701.5972837839.

The spelling of 345353369 in words is "three hundred forty-five million, three hundred fifty-three thousand, three hundred sixty-nine".