1655013 has 4 divisors (see below), whose sum is σ = 2206688. Its totient is φ = 1103340.

The previous prime is 1654987. The next prime is 1655021. The reversal of 1655013 is 3105561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3105561 = 3 ⋅1035187.

It is not a de Polignac number, because 1655013 - 2⁵ = 1654981 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655023) 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, 275833 + ... + 275838.

It is an arithmetic number, because the mean of its divisors is an integer number (551672).

2^1655013 is an apocalyptic number.

It is an amenable number.

1655013 is a deficient number, since it is larger than the sum of its proper divisors (551675).

1655013 is an equidigital number, since it uses as much as digits as its factorization.

1655013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551674.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1655013 is about 1286.4730856104. The cubic root of 1655013 is about 118.2861245706.

The spelling of 1655013 in words is "one million, six hundred fifty-five thousand, thirteen".