1385442001 has 2 divisors, whose sum is σ = 1385442002. Its totient is φ = 1385442000.

The previous prime is 1385441977. The next prime is 1385442041. The reversal of 1385442001 is 1002445831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1251461376 + 133980625 = 35376^2 + 11575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385442001 - 2⁹ = 1385441489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1385442041) 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, 692721000 + 692721001.

It is an arithmetic number, because the mean of its divisors is an integer number (692721001).

Almost surely, 2^1385442001 is an apocalyptic number.

It is an amenable number.

1385442001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385442001 is an equidigital number, since it uses as much as digits as its factorization.

1385442001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1385442001 is about 37221.5260434067. The cubic root of 1385442001 is about 1114.7978347431.

Adding to 1385442001 its reverse (1002445831), we get a palindrome (2387887832).

It can be divided in two parts, 13854 and 42001, that added together give a palindrome (55855).

The spelling of 1385442001 in words is "one billion, three hundred eighty-five million, four hundred forty-two thousand, one".