1606249 has 2 divisors, whose sum is σ = 1606250. Its totient is φ = 1606248.

The previous prime is 1606247. The next prime is 1606259. The reversal of 1606249 is 9426061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087849 + 518400 = 1043^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606249 - 2¹ = 1606247 is a prime.

Together with 1606247, it forms a pair of twin primes.

1606249 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1606247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803124 + 803125.

It is an arithmetic number, because the mean of its divisors is an integer number (803125).

2^1606249 is an apocalyptic number.

It is an amenable number.

1606249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606249 is an equidigital number, since it uses as much as digits as its factorization.

1606249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1606249 is about 1267.3787910487. The cubic root of 1606249 is about 117.1127799470.

The spelling of 1606249 in words is "one million, six hundred six thousand, two hundred forty-nine".