613257140 has 12 divisors (see below), whose sum is σ = 1287840036. Its totient is φ = 245302848.

The previous prime is 613257137. The next prime is 613257143. The reversal of 613257140 is 41752316.

613257140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (613257137) and next prime (613257143).

It can be written as a sum of positive squares in 2 ways, for example, as 219869584 + 393387556 = 14828^2 + 19834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613257143) 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, 15331409 + ... + 15331448.

It is an arithmetic number, because the mean of its divisors is an integer number (107320003).

Almost surely, 2^613257140 is an apocalyptic number.

It is an amenable number.

613257140 is an abundant number, since it is smaller than the sum of its proper divisors (674582896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613257140 is a wasteful number, since it uses less digits than its factorization.

613257140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30662866 (or 30662864 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 613257140 is about 24764.0291552082. The cubic root of 613257140 is about 849.5994144724.

The spelling of 613257140 in words is "six hundred thirteen million, two hundred fifty-seven thousand, one hundred forty".