613265385 has 16 divisors (see below), whose sum is σ = 999739584. Its totient is φ = 320903232.

The previous prime is 613265371. The next prime is 613265423. The reversal of 613265385 is 583562316.

It is not a de Polignac number, because 613265385 - 2⁴ = 613265369 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 384907 + ... + 386496.

It is an arithmetic number, because the mean of its divisors is an integer number (62483724).

Almost surely, 2^613265385 is an apocalyptic number.

It is an amenable number.

613265385 is a deficient number, since it is larger than the sum of its proper divisors (386474199).

613265385 is a wasteful number, since it uses less digits than its factorization.

613265385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771464.

The product of its digits is 129600, while the sum is 39.

The square root of 613265385 is about 24764.1956259435. The cubic root of 613265385 is about 849.6032219648.

It can be divided in two parts, 6132 and 65385, that added together give a palindrome (71517).

The spelling of 613265385 in words is "six hundred thirteen million, two hundred sixty-five thousand, three hundred eighty-five".