1655249 has 2 divisors, whose sum is σ = 1655250. Its totient is φ = 1655248.

The previous prime is 1655237. The next prime is 1655257. The reversal of 1655249 is 9425561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 117649 = 1240^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 1655249 - 2¹⁶ = 1589713 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1655209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827624 + 827625.

It is an arithmetic number, because the mean of its divisors is an integer number (827625).

2^1655249 is an apocalyptic number.

It is an amenable number.

1655249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655249 is an equidigital number, since it uses as much as digits as its factorization.

1655249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 1655249 is about 1286.5648059853. The cubic root of 1655249 is about 118.2917467215.

The spelling of 1655249 in words is "one million, six hundred fifty-five thousand, two hundred forty-nine".