616245231 has 16 divisors (see below), whose sum is σ = 939552768. Its totient is φ = 351948000.

The previous prime is 616245229. The next prime is 616245239. The reversal of 616245231 is 132542616.

It is not a de Polignac number, because 616245231 - 2¹ = 616245229 is a prime.

It is a super-2 number, since 2×616245231² = 759516369460486722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616245239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37381 + ... + 51281.

It is an arithmetic number, because the mean of its divisors is an integer number (58722048).

Almost surely, 2^616245231 is an apocalyptic number.

616245231 is a deficient number, since it is larger than the sum of its proper divisors (323307537).

616245231 is a wasteful number, since it uses less digits than its factorization.

616245231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022.

The product of its digits is 8640, while the sum is 30.

The square root of 616245231 is about 24824.2871196737. The cubic root of 616245231 is about 850.9770683634.

Adding to 616245231 its reverse (132542616), we get a palindrome (748787847).

The spelling of 616245231 in words is "six hundred sixteen million, two hundred forty-five thousand, two hundred thirty-one".