345953065 has 4 divisors (see below), whose sum is σ = 415143684. Its totient is φ = 276762448.

The previous prime is 345952991. The next prime is 345953089. The reversal of 345953065 is 560359543.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45589504 + 300363561 = 6752^2 + 17331^2 .

It is a cyclic number.

It is not a de Polignac number, because 345953065 - 2¹⁵ = 345920297 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34595302 + ... + 34595311.

It is an arithmetic number, because the mean of its divisors is an integer number (103785921).

Almost surely, 2^345953065 is an apocalyptic number.

It is an amenable number.

345953065 is a deficient number, since it is larger than the sum of its proper divisors (69190619).

345953065 is an equidigital number, since it uses as much as digits as its factorization.

345953065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69190618.

The product of its (nonzero) digits is 243000, while the sum is 40.

The square root of 345953065 is about 18599.8135743346. The cubic root of 345953065 is about 702.0031499874.

The spelling of 345953065 in words is "three hundred forty-five million, nine hundred fifty-three thousand, sixty-five".