613297049 has 4 divisors (see below), whose sum is σ = 649373364. Its totient is φ = 577220736.

The previous prime is 613297039. The next prime is 613297057. The reversal of 613297049 is 940792316.

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 292170649 + 321126400 = 17093^2 + 17920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613297049 is a prime.

It is a super-2 number, since 2×613297049² = 752266540624216802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 613296997 and 613297015.

It is not an unprimeable number, because it can be changed into a prime (613297039) 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, 18038132 + ... + 18038165.

It is an arithmetic number, because the mean of its divisors is an integer number (162343341).

Almost surely, 2^613297049 is an apocalyptic number.

It is an amenable number.

613297049 is a deficient number, since it is larger than the sum of its proper divisors (36076315).

613297049 is a wasteful number, since it uses less digits than its factorization.

613297049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36076314.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 613297049 is about 24764.8349277761. The cubic root of 613297049 is about 849.6178438964.

The spelling of 613297049 in words is "six hundred thirteen million, two hundred ninety-seven thousand, forty-nine".