1148549 has 2 divisors, whose sum is σ = 1148550. Its totient is φ = 1148548.

The previous prime is 1148527. The next prime is 1148561. The reversal of 1148549 is 9458411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1036324 + 112225 = 1018^2 + 335^2 .

It is an emirp because it is prime and its reverse (9458411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1148549 - 2⁸ = 1148293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574274 + 574275.

It is an arithmetic number, because the mean of its divisors is an integer number (574275).

2^1148549 is an apocalyptic number.

It is an amenable number.

1148549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148549 is an equidigital number, since it uses as much as digits as its factorization.

1148549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 32.

The square root of 1148549 is about 1071.7037837014. The cubic root of 1148549 is about 104.7248730750.

The spelling of 1148549 in words is "one million, one hundred forty-eight thousand, five hundred forty-nine".