1023166387 has 2 divisors, whose sum is σ = 1023166388. Its totient is φ = 1023166386.

The previous prime is 1023166289. The next prime is 1023166427. The reversal of 1023166387 is 7836613201.

It is a strong prime.

It is an emirp because it is prime and its reverse (7836613201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023166387 - 2¹¹ = 1023164339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023166187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511583193 + 511583194.

It is an arithmetic number, because the mean of its divisors is an integer number (511583194).

Almost surely, 2^1023166387 is an apocalyptic number.

1023166387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023166387 is an equidigital number, since it uses as much as digits as its factorization.

1023166387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1023166387 is about 31986.9721449218. The cubic root of 1023166387 is about 1007.6632535359.

Adding to 1023166387 its reverse (7836613201), we get a palindrome (8859779588).

The spelling of 1023166387 in words is "one billion, twenty-three million, one hundred sixty-six thousand, three hundred eighty-seven".