616245131 has 2 divisors, whose sum is σ = 616245132. Its totient is φ = 616245130.

The previous prime is 616245103. The next prime is 616245191. The reversal of 616245131 is 131542616.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616245131 - 2²⁶ = 549136267 is a prime.

It is a super-2 number, since 2×616245131² = 759516122962414322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 616245094 and 616245103.

It is not a weakly prime, because it can be changed into another prime (616245191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308122565 + 308122566.

It is an arithmetic number, because the mean of its divisors is an integer number (308122566).

Almost surely, 2^616245131 is an apocalyptic number.

616245131 is a deficient number, since it is larger than the sum of its proper divisors (1).

616245131 is an equidigital number, since it uses as much as digits as its factorization.

616245131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 616245131 is about 24824.2851055171. The cubic root of 616245131 is about 850.9770223332.

Adding to 616245131 its reverse (131542616), we get a palindrome (747787747).

The spelling of 616245131 in words is "six hundred sixteen million, two hundred forty-five thousand, one hundred thirty-one".