1378023683 has 2 divisors, whose sum is σ = 1378023684. Its totient is φ = 1378023682.

The previous prime is 1378023677. The next prime is 1378023707. The reversal of 1378023683 is 3863208731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1378023683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1378023683.

It is not a weakly prime, because it can be changed into another prime (1378023643) 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, 689011841 + 689011842.

It is an arithmetic number, because the mean of its divisors is an integer number (689011842).

Almost surely, 2^1378023683 is an apocalyptic number.

1378023683 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378023683 is an equidigital number, since it uses as much as digits as its factorization.

1378023683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1378023683 is about 37121.7413788739. The cubic root of 1378023683 is about 1112.8045528690.

The spelling of 1378023683 in words is "one billion, three hundred seventy-eight million, twenty-three thousand, six hundred eighty-three".