1611327413 has 2 divisors, whose sum is σ = 1611327414. Its totient is φ = 1611327412.

The previous prime is 1611327407. The next prime is 1611327449. The reversal of 1611327413 is 3147231161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1416920164 + 194407249 = 37642^2 + 13943^2 .

It is an emirp because it is prime and its reverse (3147231161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1611327413 - 2²⁶ = 1544218549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1611327013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805663706 + 805663707.

It is an arithmetic number, because the mean of its divisors is an integer number (805663707).

Almost surely, 2^1611327413 is an apocalyptic number.

It is an amenable number.

1611327413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611327413 is an equidigital number, since it uses as much as digits as its factorization.

1611327413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 1611327413 is about 40141.3429396676. The cubic root of 1611327413 is about 1172.3607369267.

Adding to 1611327413 its reverse (3147231161), we get a palindrome (4758558574).

The spelling of 1611327413 in words is "one billion, six hundred eleven million, three hundred twenty-seven thousand, four hundred thirteen".