612983065 has 4 divisors (see below), whose sum is σ = 735579684. Its totient is φ = 490386448.

The previous prime is 612983053. The next prime is 612983099. The reversal of 612983065 is 560389216.

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 259242201 + 353740864 = 16101^2 + 18808^2 .

It is a cyclic number.

It is not a de Polignac number, because 612983065 - 2¹⁵ = 612950297 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61298302 + ... + 61298311.

It is an arithmetic number, because the mean of its divisors is an integer number (183894921).

Almost surely, 2^612983065 is an apocalyptic number.

It is an amenable number.

612983065 is a deficient number, since it is larger than the sum of its proper divisors (122596619).

612983065 is a wasteful number, since it uses less digits than its factorization.

612983065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122596618.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 612983065 is about 24758.4948048140. The cubic root of 612983065 is about 849.4728288246.

The spelling of 612983065 in words is "six hundred twelve million, nine hundred eighty-three thousand, sixty-five".