7149161449 has 2 divisors, whose sum is σ = 7149161450. Its totient is φ = 7149161448.

The previous prime is 7149161447. The next prime is 7149161471. The reversal of 7149161449 is 9441619417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7141433049 + 7728400 = 84507^2 + 2780^2 .

It is an emirp because it is prime and its reverse (9441619417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7149161449 - 2¹ = 7149161447 is a prime.

It is a super-2 number, since 2×7149161449² (a number of 21 digits) contains 22 as substring.

Together with 7149161447, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7149161399 and 7149161408.

It is not a weakly prime, because it can be changed into another prime (7149161443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574580724 + 3574580725.

It is an arithmetic number, because the mean of its divisors is an integer number (3574580725).

Almost surely, 2^7149161449 is an apocalyptic number.

It is an amenable number.

7149161449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7149161449 is an equidigital number, since it uses as much as digits as its factorization.

7149161449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 7149161449 is about 84552.7140250388. The cubic root of 7149161449 is about 1926.4232078472.

The spelling of 7149161449 in words is "seven billion, one hundred forty-nine million, one hundred sixty-one thousand, four hundred forty-nine".