1149326897 has 2 divisors, whose sum is σ = 1149326898. Its totient is φ = 1149326896.

The previous prime is 1149326887. The next prime is 1149326933. The reversal of 1149326897 is 7986239411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 772617616 + 376709281 = 27796^2 + 19409^2 .

It is an emirp because it is prime and its reverse (7986239411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1149326897 - 2⁴ = 1149326881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1149326887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574663448 + 574663449.

It is an arithmetic number, because the mean of its divisors is an integer number (574663449).

Almost surely, 2^1149326897 is an apocalyptic number.

It is an amenable number.

1149326897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149326897 is an equidigital number, since it uses as much as digits as its factorization.

1149326897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 1149326897 is about 33901.7241007002. The cubic root of 1149326897 is about 1047.4851066172.

The spelling of 1149326897 in words is "one billion, one hundred forty-nine million, three hundred twenty-six thousand, eight hundred ninety-seven".