1655459 has 4 divisors (see below), whose sum is σ = 1782816. Its totient is φ = 1528104.

The previous prime is 1655449. The next prime is 1655461. The reversal of 1655459 is 9545561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9545561 = 313 ⋅30497.

It is a cyclic number.

It is not a de Polignac number, because 1655459 - 2¹⁶ = 1589923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63659 + ... + 63684.

It is an arithmetic number, because the mean of its divisors is an integer number (445704).

2^1655459 is an apocalyptic number.

1655459 is a deficient number, since it is larger than the sum of its proper divisors (127357).

1655459 is a wasteful number, since it uses less digits than its factorization.

1655459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127356.

The product of its digits is 27000, while the sum is 35.

The square root of 1655459 is about 1286.6464160755. The cubic root of 1655459 is about 118.2967490336.

The spelling of 1655459 in words is "one million, six hundred fifty-five thousand, four hundred fifty-nine".