1153204427 has 2 divisors, whose sum is σ = 1153204428. Its totient is φ = 1153204426.

The previous prime is 1153204391. The next prime is 1153204439. The reversal of 1153204427 is 7244023511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1153204427 - 2⁶ = 1153204363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1153204427.

It is not a weakly prime, because it can be changed into another prime (1153204727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576602213 + 576602214.

It is an arithmetic number, because the mean of its divisors is an integer number (576602214).

Almost surely, 2^1153204427 is an apocalyptic number.

1153204427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153204427 is an equidigital number, since it uses as much as digits as its factorization.

1153204427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1153204427 is about 33958.8637471868. The cubic root of 1153204427 is about 1048.6617651241.

Adding to 1153204427 its reverse (7244023511), we get a palindrome (8397227938).

The spelling of 1153204427 in words is "one billion, one hundred fifty-three million, two hundred four thousand, four hundred twenty-seven".