613359409 has 4 divisors (see below), whose sum is σ = 660540916. Its totient is φ = 566177904.

The previous prime is 613359403. The next prime is 613359419. The reversal of 613359409 is 904953316.

613359409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 319408384 + 293951025 = 17872^2 + 17145^2 .

It is a cyclic number.

It is not a de Polignac number, because 613359409 - 2³ = 613359401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613359401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23590734 + ... + 23590759.

It is an arithmetic number, because the mean of its divisors is an integer number (165135229).

Almost surely, 2^613359409 is an apocalyptic number.

It is an amenable number.

613359409 is a deficient number, since it is larger than the sum of its proper divisors (47181507).

613359409 is a wasteful number, since it uses less digits than its factorization.

613359409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47181506.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 613359409 is about 24766.0939390934. The cubic root of 613359409 is about 849.6466392809.

The spelling of 613359409 in words is "six hundred thirteen million, three hundred fifty-nine thousand, four hundred nine".