1149016549 has 2 divisors, whose sum is σ = 1149016550. Its totient is φ = 1149016548.

The previous prime is 1149016493. The next prime is 1149016579. The reversal of 1149016549 is 9456109411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638572900 + 510443649 = 25270^2 + 22593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149016549 - 2¹¹ = 1149014501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149016579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574508274 + 574508275.

It is an arithmetic number, because the mean of its divisors is an integer number (574508275).

Almost surely, 2^1149016549 is an apocalyptic number.

It is an amenable number.

1149016549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149016549 is an equidigital number, since it uses as much as digits as its factorization.

1149016549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1149016549 is about 33897.1466203278. The cubic root of 1149016549 is about 1047.3908154358.

The spelling of 1149016549 in words is "one billion, one hundred forty-nine million, sixteen thousand, five hundred forty-nine".