1616588249 has 2 divisors, whose sum is σ = 1616588250. Its totient is φ = 1616588248.

The previous prime is 1616588219. The next prime is 1616588269. The reversal of 1616588249 is 9428856161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1576645849 + 39942400 = 39707^2 + 6320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616588249 - 2¹² = 1616584153 is a prime.

It is a super-2 number, since 2×1616588249² = 5226715133609772002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616588197 and 1616588206.

It is not a weakly prime, because it can be changed into another prime (1616588219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808294124 + 808294125.

It is an arithmetic number, because the mean of its divisors is an integer number (808294125).

Almost surely, 2^1616588249 is an apocalyptic number.

It is an amenable number.

1616588249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616588249 is an equidigital number, since it uses as much as digits as its factorization.

1616588249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 50.

The square root of 1616588249 is about 40206.8184391653. The cubic root of 1616588249 is about 1173.6352342666.

The spelling of 1616588249 in words is "one billion, six hundred sixteen million, five hundred eighty-eight thousand, two hundred forty-nine".