616120140 has 24 divisors (see below), whose sum is σ = 1725136560. Its totient is φ = 164298688.

The previous prime is 616120139. The next prime is 616120151. The reversal of 616120140 is 41021616.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5134275 + ... + 5134394.

It is an arithmetic number, because the mean of its divisors is an integer number (71880690).

Almost surely, 2^616120140 is an apocalyptic number.

616120140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616120140 is an abundant number, since it is smaller than the sum of its proper divisors (1109016420).

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

616120140 is a wasteful number, since it uses less digits than its factorization.

616120140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268681 (or 10268679 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 616120140 is about 24821.7674632569. The cubic root of 616120140 is about 850.9194848070.

Adding to 616120140 its reverse (41021616), we get a palindrome (657141756).

The spelling of 616120140 in words is "six hundred sixteen million, one hundred twenty thousand, one hundred forty".