613157140 has 24 divisors (see below), whose sum is σ = 1294309800. Its totient is φ = 243990528.

The previous prime is 613157137. The next prime is 613157147. The reversal of 613157140 is 41751316.

It can be written as a sum of positive squares in 4 ways, for example, as 15256836 + 597900304 = 3906^2 + 24452^2 .

It is a junction number, because it is equal to n+sod(n) for n = 613157099 and 613157108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613157147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75565 + ... + 83284.

It is an arithmetic number, because the mean of its divisors is an integer number (53929575).

Almost surely, 2^613157140 is an apocalyptic number.

It is an amenable number.

613157140 is an abundant number, since it is smaller than the sum of its proper divisors (681152660).

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

613157140 is a wasteful number, since it uses less digits than its factorization.

613157140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159051 (or 159049 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 613157140 is about 24762.0100153441. The cubic root of 613157140 is about 849.5532323441.

The spelling of 613157140 in words is "six hundred thirteen million, one hundred fifty-seven thousand, one hundred forty".