168537349 has 2 divisors, whose sum is σ = 168537350. Its totient is φ = 168537348.

The previous prime is 168537329. The next prime is 168537389. The reversal of 168537349 is 943735861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167573025 + 964324 = 12945^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 168537349 - 2¹³ = 168529157 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 168537299 and 168537308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168537319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84268674 + 84268675.

It is an arithmetic number, because the mean of its divisors is an integer number (84268675).

Almost surely, 2^168537349 is an apocalyptic number.

It is an amenable number.

168537349 is a deficient number, since it is larger than the sum of its proper divisors (1).

168537349 is an equidigital number, since it uses as much as digits as its factorization.

168537349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 168537349 is about 12982.1935357627. The cubic root of 168537349 is about 552.3725048593.

The spelling of 168537349 in words is "one hundred sixty-eight million, five hundred thirty-seven thousand, three hundred forty-nine".