1380212017 has 2 divisors, whose sum is σ = 1380212018. Its totient is φ = 1380212016.

The previous prime is 1380211969. The next prime is 1380212021. The reversal of 1380212017 is 7102120831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1250046736 + 130165281 = 35356^2 + 11409^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380212017 - 2²⁷ = 1245994289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380211982 and 1380212000.

It is not a weakly prime, because it can be changed into another prime (1380212077) 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, 690106008 + 690106009.

It is an arithmetic number, because the mean of its divisors is an integer number (690106009).

Almost surely, 2^1380212017 is an apocalyptic number.

It is an amenable number.

1380212017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380212017 is an equidigital number, since it uses as much as digits as its factorization.

1380212017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1380212017 is about 37151.2047853095. The cubic root of 1380212017 is about 1113.3932945961.

Adding to 1380212017 its reverse (7102120831), we get a palindrome (8482332848).

The spelling of 1380212017 in words is "one billion, three hundred eighty million, two hundred twelve thousand, seventeen".