1656013 has 2 divisors, whose sum is σ = 1656014. Its totient is φ = 1656012.

The previous prime is 1656007. The next prime is 1656019. The reversal of 1656013 is 3106561.

It is a balanced prime because it is at equal distance from previous prime (1656007) and next prime (1656019).

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 580644 = 1037^2 + 762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1656013 - 2⁵ = 1655981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1656019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828006 + 828007.

It is an arithmetic number, because the mean of its divisors is an integer number (828007).

2^1656013 is an apocalyptic number.

It is an amenable number.

1656013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1656013 is an equidigital number, since it uses as much as digits as its factorization.

1656013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1656013 is about 1286.8616864294. The cubic root of 1656013 is about 118.3099435796.

The spelling of 1656013 in words is "one million, six hundred fifty-six thousand, thirteen".