1152345091 has 2 divisors, whose sum is σ = 1152345092. Its totient is φ = 1152345090.

The previous prime is 1152345043. The next prime is 1152345097. The reversal of 1152345091 is 1905432511.

It is a strong prime.

It is an emirp because it is prime and its reverse (1905432511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152345091 - 2⁹ = 1152344579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1152345097) 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, 576172545 + 576172546.

It is an arithmetic number, because the mean of its divisors is an integer number (576172546).

Almost surely, 2^1152345091 is an apocalyptic number.

1152345091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152345091 is an equidigital number, since it uses as much as digits as its factorization.

1152345091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1152345091 is about 33946.2087868439. The cubic root of 1152345091 is about 1048.4012224957.

The spelling of 1152345091 in words is "one billion, one hundred fifty-two million, three hundred forty-five thousand, ninety-one".