1383765001 has 2 divisors, whose sum is σ = 1383765002. Its totient is φ = 1383765000.

The previous prime is 1383764999. The next prime is 1383765017. The reversal of 1383765001 is 1005673831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874089225 + 509675776 = 29565^2 + 22576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1383765001 - 2¹ = 1383764999 is a prime.

Together with 1383764999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1383765101) 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, 691882500 + 691882501.

It is an arithmetic number, because the mean of its divisors is an integer number (691882501).

Almost surely, 2^1383765001 is an apocalyptic number.

It is an amenable number.

1383765001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383765001 is an equidigital number, since it uses as much as digits as its factorization.

1383765001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1383765001 is about 37198.9919352662. The cubic root of 1383765001 is about 1114.3478530068.

The spelling of 1383765001 in words is "one billion, three hundred eighty-three million, seven hundred sixty-five thousand, one".