612215065 has 24 divisors (see below), whose sum is σ = 932297472. Its totient is φ = 381638880.

The previous prime is 612215053. The next prime is 612215077. The reversal of 612215065 is 560512216.

612215065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (612215053) and next prime (612215077).

It is not a de Polignac number, because 612215065 - 2⁹ = 612214553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110889 + ... + 116278.

It is an arithmetic number, because the mean of its divisors is an integer number (38845728).

Almost surely, 2^612215065 is an apocalyptic number.

It is an amenable number.

612215065 is a deficient number, since it is larger than the sum of its proper divisors (320082407).

612215065 is a wasteful number, since it uses less digits than its factorization.

612215065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227197 (or 227190 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 612215065 is about 24742.9801155803. The cubic root of 612215065 is about 849.1179153862.

The spelling of 612215065 in words is "six hundred twelve million, two hundred fifteen thousand, sixty-five".