345418069 has 2 divisors, whose sum is σ = 345418070. Its totient is φ = 345418068.

The previous prime is 345418039. The next prime is 345418091. The reversal of 345418069 is 960814543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301022500 + 44395569 = 17350^2 + 6663^2 .

It is a cyclic number.

It is not a de Polignac number, because 345418069 - 2¹⁵ = 345385301 is a prime.

It is a super-2 number, since 2×345418069² = 238627284783377522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345418039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172709034 + 172709035.

It is an arithmetic number, because the mean of its divisors is an integer number (172709035).

Almost surely, 2^345418069 is an apocalyptic number.

It is an amenable number.

345418069 is a deficient number, since it is larger than the sum of its proper divisors (1).

345418069 is an equidigital number, since it uses as much as digits as its factorization.

345418069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 345418069 is about 18585.4262528466. The cubic root of 345418069 is about 701.6410944755.

The spelling of 345418069 in words is "three hundred forty-five million, four hundred eighteen thousand, sixty-nine".