1655135 has 4 divisors (see below), whose sum is σ = 1986168. Its totient is φ = 1324104.

The previous prime is 1655131. The next prime is 1655141. The reversal of 1655135 is 5315561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1655135 - 2² = 1655131 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165509 + ... + 165518.

It is an arithmetic number, because the mean of its divisors is an integer number (496542).

2^1655135 is an apocalyptic number.

1655135 is a deficient number, since it is larger than the sum of its proper divisors (331033).

1655135 is an equidigital number, since it uses as much as digits as its factorization.

1655135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331032.

The product of its digits is 2250, while the sum is 26.

The square root of 1655135 is about 1286.5205011969. The cubic root of 1655135 is about 118.2890310035.

The spelling of 1655135 in words is "one million, six hundred fifty-five thousand, one hundred thirty-five".