1652123065 has 4 divisors (see below), whose sum is σ = 1982547684. Its totient is φ = 1321698448.

The previous prime is 1652123059. The next prime is 1652123071. The reversal of 1652123065 is 5603212561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5603212561 = 41 ⋅136663721.

It is an interprime number because it is at equal distance from previous prime (1652123059) and next prime (1652123071).

It can be written as a sum of positive squares in 2 ways, for example, as 795916944 + 856206121 = 28212^2 + 29261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1652123065 is a prime.

It is a Smith number, since the sum of its digits (31) 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165212302 + ... + 165212311.

It is an arithmetic number, because the mean of its divisors is an integer number (495636921).

Almost surely, 2^1652123065 is an apocalyptic number.

It is an amenable number.

1652123065 is a deficient number, since it is larger than the sum of its proper divisors (330424619).

1652123065 is an equidigital number, since it uses as much as digits as its factorization.

1652123065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330424618.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1652123065 is about 40646.3167458012. The cubic root of 1652123065 is about 1182.1723520747.

The spelling of 1652123065 in words is "one billion, six hundred fifty-two million, one hundred twenty-three thousand, sixty-five".