1149232069 has 2 divisors, whose sum is σ = 1149232070. Its totient is φ = 1149232068.

The previous prime is 1149232033. The next prime is 1149232087. The reversal of 1149232069 is 9602329411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916272900 + 232959169 = 30270^2 + 15263^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149232069 - 2⁹ = 1149231557 is a prime.

It is a super-2 number, since 2×1149232069² = 2641468696836041522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149232369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574616034 + 574616035.

It is an arithmetic number, because the mean of its divisors is an integer number (574616035).

Almost surely, 2^1149232069 is an apocalyptic number.

It is an amenable number.

1149232069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149232069 is an equidigital number, since it uses as much as digits as its factorization.

1149232069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1149232069 is about 33900.3254999122. The cubic root of 1149232069 is about 1047.4562973928.

The spelling of 1149232069 in words is "one billion, one hundred forty-nine million, two hundred thirty-two thousand, sixty-nine".