612065491 has 2 divisors, whose sum is σ = 612065492. Its totient is φ = 612065490.

The previous prime is 612065477. The next prime is 612065533. The reversal of 612065491 is 194560216.

612065491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612065491 - 2¹¹ = 612063443 is a prime.

It is not a weakly prime, because it can be changed into another prime (612065431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306032745 + 306032746.

It is an arithmetic number, because the mean of its divisors is an integer number (306032746).

Almost surely, 2^612065491 is an apocalyptic number.

612065491 is a deficient number, since it is larger than the sum of its proper divisors (1).

612065491 is an equidigital number, since it uses as much as digits as its factorization.

612065491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 612065491 is about 24739.9573766811. The cubic root of 612065491 is about 849.0487586933.

The spelling of 612065491 in words is "six hundred twelve million, sixty-five thousand, four hundred ninety-one".