1156332449 has 2 divisors, whose sum is σ = 1156332450. Its totient is φ = 1156332448.

The previous prime is 1156332433. The next prime is 1156332461. The reversal of 1156332449 is 9442336511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 803155600 + 353176849 = 28340^2 + 18793^2 .

It is an emirp because it is prime and its reverse (9442336511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1156332449 - 2⁴ = 1156332433 is a prime.

It is a super-2 number, since 2×1156332449² = 2674209465220675202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1156332649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578166224 + 578166225.

It is an arithmetic number, because the mean of its divisors is an integer number (578166225).

Almost surely, 2^1156332449 is an apocalyptic number.

It is an amenable number.

1156332449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156332449 is an equidigital number, since it uses as much as digits as its factorization.

1156332449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 1156332449 is about 34004.8886044345. Note that the first 3 decimals coincide. The cubic root of 1156332449 is about 1049.6090605090.

The spelling of 1156332449 in words is "one billion, one hundred fifty-six million, three hundred thirty-two thousand, four hundred forty-nine".