613504741 has 2 divisors, whose sum is σ = 613504742. Its totient is φ = 613504740.

The previous prime is 613504673. The next prime is 613504747. The reversal of 613504741 is 147405316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429359841 + 184144900 = 20721^2 + 13570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613504741 is a prime.

It is a super-3 number, since 3×613504741³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613504747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306752370 + 306752371.

It is an arithmetic number, because the mean of its divisors is an integer number (306752371).

Almost surely, 2^613504741 is an apocalyptic number.

It is an amenable number.

613504741 is a deficient number, since it is larger than the sum of its proper divisors (1).

613504741 is an equidigital number, since it uses as much as digits as its factorization.

613504741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 613504741 is about 24769.0278573867. The cubic root of 613504741 is about 849.7137402836.

The spelling of 613504741 in words is "six hundred thirteen million, five hundred four thousand, seven hundred forty-one".