169016149 has 2 divisors, whose sum is σ = 169016150. Its totient is φ = 169016148.

The previous prime is 169016129. The next prime is 169016201. The reversal of 169016149 is 941610961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136469124 + 32547025 = 11682^2 + 5705^2 .

It is a cyclic number.

It is not a de Polignac number, because 169016149 - 2⁵ = 169016117 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169016119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84508074 + 84508075.

It is an arithmetic number, because the mean of its divisors is an integer number (84508075).

Almost surely, 2^169016149 is an apocalyptic number.

It is an amenable number.

169016149 is a deficient number, since it is larger than the sum of its proper divisors (1).

169016149 is an equidigital number, since it uses as much as digits as its factorization.

169016149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 169016149 is about 13000.6211005475. The cubic root of 169016149 is about 552.8950910998.

The spelling of 169016149 in words is "one hundred sixty-nine million, sixteen thousand, one hundred forty-nine".