1148434789 has 2 divisors, whose sum is σ = 1148434790. Its totient is φ = 1148434788.

The previous prime is 1148434769. The next prime is 1148434811. The reversal of 1148434789 is 9874348411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867302500 + 281132289 = 29450^2 + 16767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148434789 - 2¹³ = 1148426597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148434709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574217394 + 574217395.

It is an arithmetic number, because the mean of its divisors is an integer number (574217395).

Almost surely, 2^1148434789 is an apocalyptic number.

It is an amenable number.

1148434789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148434789 is an equidigital number, since it uses as much as digits as its factorization.

1148434789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 49.

The square root of 1148434789 is about 33888.5642805947. The cubic root of 1148434789 is about 1047.2140170114.

The spelling of 1148434789 in words is "one billion, one hundred forty-eight million, four hundred thirty-four thousand, seven hundred eighty-nine".