1656241313 has 2 divisors, whose sum is σ = 1656241314. Its totient is φ = 1656241312.

The previous prime is 1656241297. The next prime is 1656241351. The reversal of 1656241313 is 3131426561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1637982784 + 18258529 = 40472^2 + 4273^2 .

It is an emirp because it is prime and its reverse (3131426561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1656241313 - 2⁴ = 1656241297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1656241313.

It is not a weakly prime, because it can be changed into another prime (1656241373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828120656 + 828120657.

It is an arithmetic number, because the mean of its divisors is an integer number (828120657).

Almost surely, 2^1656241313 is an apocalyptic number.

It is an amenable number.

1656241313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1656241313 is an equidigital number, since it uses as much as digits as its factorization.

1656241313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 1656241313 is about 40696.9447624757. The cubic root of 1656241313 is about 1183.1538042438.

Adding to 1656241313 its reverse (3131426561), we get a palindrome (4787667874).

It can be divided in two parts, 16562 and 41313, that added together give a palindrome (57875).

The spelling of 1656241313 in words is "one billion, six hundred fifty-six million, two hundred forty-one thousand, three hundred thirteen".