345065401 has 2 divisors, whose sum is σ = 345065402. Its totient is φ = 345065400.

The previous prime is 345065393. The next prime is 345065423. The reversal of 345065401 is 104560543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344065401 + 1000000 = 18549^2 + 1000^2 .

It is an emirp because it is prime and its reverse (104560543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345065401 - 2³ = 345065393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345065401.

It is not a weakly prime, because it can be changed into another prime (345065431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172532700 + 172532701.

It is an arithmetic number, because the mean of its divisors is an integer number (172532701).

Almost surely, 2^345065401 is an apocalyptic number.

It is an amenable number.

345065401 is a deficient number, since it is larger than the sum of its proper divisors (1).

345065401 is an equidigital number, since it uses as much as digits as its factorization.

345065401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 345065401 is about 18575.9360733181. The cubic root of 345065401 is about 701.4022239156.

The spelling of 345065401 in words is "three hundred forty-five million, sixty-five thousand, four hundred one".