1163248789 has 2 divisors, whose sum is σ = 1163248790. Its totient is φ = 1163248788.

The previous prime is 1163248777. The next prime is 1163248831. The reversal of 1163248789 is 9878423611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 890007889 + 273240900 = 29833^2 + 16530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163248789 - 2¹³ = 1163240597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163248769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581624394 + 581624395.

It is an arithmetic number, because the mean of its divisors is an integer number (581624395).

Almost surely, 2^1163248789 is an apocalyptic number.

It is an amenable number.

1163248789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163248789 is an equidigital number, since it uses as much as digits as its factorization.

1163248789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 1163248789 is about 34106.4332494619. The cubic root of 1163248789 is about 1051.6975681435.

The spelling of 1163248789 in words is "one billion, one hundred sixty-three million, two hundred forty-eight thousand, seven hundred eighty-nine".