613099905 has 16 divisors (see below), whose sum is σ = 1070138304. Its totient is φ = 297260480.

The previous prime is 613099867. The next prime is 613099939. The reversal of 613099905 is 509990316.

It is not a de Polignac number, because 613099905 - 2⁷ = 613099777 is a prime.

It is a super-2 number, since 2×613099905² = 751782987022018050, which contains 22 as substring.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 1857714 + ... + 1858043.

It is an arithmetic number, because the mean of its divisors is an integer number (66883644).

Almost surely, 2^613099905 is an apocalyptic number.

It is an amenable number.

613099905 is a deficient number, since it is larger than the sum of its proper divisors (457038399).

613099905 is a wasteful number, since it uses less digits than its factorization.

613099905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715776.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 613099905 is about 24760.8542865548. The cubic root of 613099905 is about 849.5267977435.

The spelling of 613099905 in words is "six hundred thirteen million, ninety-nine thousand, nine hundred five".