613111240 has 64 divisors (see below), whose sum is σ = 1610150400. Its totient is φ = 205732608.

The previous prime is 613111231. The next prime is 613111249. The reversal of 613111240 is 42111316.

It is an interprime number because it is at equal distance from previous prime (613111231) and next prime (613111249).

It is a super-2 number, since 2×613111240² = 751810785228675200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (613111249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10135 + ... + 36454.

It is an arithmetic number, because the mean of its divisors is an integer number (25158600).

Almost surely, 2^613111240 is an apocalyptic number.

It is an amenable number.

613111240 is an abundant number, since it is smaller than the sum of its proper divisors (997039160).

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

613111240 is a wasteful number, since it uses less digits than its factorization.

613111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46654 (or 46650 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 613111240 is about 24761.0831750148. The cubic root of 613111240 is about 849.5320330658.

Adding to 613111240 its reverse (42111316), we get a palindrome (655222556).

It can be divided in two parts, 6131 and 11240, that added together give a palindrome (17371).

The spelling of 613111240 in words is "six hundred thirteen million, one hundred eleven thousand, two hundred forty".