616667141 has 2 divisors, whose sum is σ = 616667142. Its totient is φ = 616667140.

The previous prime is 616667111. The next prime is 616667153. The reversal of 616667141 is 141766616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608658241 + 8008900 = 24671^2 + 2830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616667141 is a prime.

It is a super-2 number, since 2×616667141² = 760556725578227762, 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 = 616667095 and 616667104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616667111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308333570 + 308333571.

It is an arithmetic number, because the mean of its divisors is an integer number (308333571).

Almost surely, 2^616667141 is an apocalyptic number.

It is an amenable number.

616667141 is a deficient number, since it is larger than the sum of its proper divisors (1).

616667141 is an equidigital number, since it uses as much as digits as its factorization.

616667141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 616667141 is about 24832.7835934677. The cubic root of 616667141 is about 851.1712301519.

The spelling of 616667141 in words is "six hundred sixteen million, six hundred sixty-seven thousand, one hundred forty-one".