613180745 has 4 divisors (see below), whose sum is σ = 735816900. Its totient is φ = 490544592.

The previous prime is 613180709. The next prime is 613180751. The reversal of 613180745 is 547081316.

613180745 is digitally balanced in base 6, 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 140944384 + 472236361 = 11872^2 + 21731^2 .

It is a cyclic number.

It is not a de Polignac number, because 613180745 - 2⁸ = 613180489 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61318070 + ... + 61318079.

It is an arithmetic number, because the mean of its divisors is an integer number (183954225).

Almost surely, 2^613180745 is an apocalyptic number.

It is an amenable number.

613180745 is a deficient number, since it is larger than the sum of its proper divisors (122636155).

613180745 is a wasteful number, since it uses less digits than its factorization.

613180745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122636154.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 613180745 is about 24762.4866481539. The cubic root of 613180745 is about 849.5641340882.

The spelling of 613180745 in words is "six hundred thirteen million, one hundred eighty thousand, seven hundred forty-five".