1380319 has 2 divisors, whose sum is σ = 1380320. Its totient is φ = 1380318.

The previous prime is 1380317. The next prime is 1380329. The reversal of 1380319 is 9130831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1380319 - 2¹ = 1380317 is a prime.

It is a super-2 number, since 2×1380319² = 3810561083522, which contains 22 as substring.

Together with 1380317, it forms a pair of twin primes.

1380319 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1380293 and 1380302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690159 + 690160.

It is an arithmetic number, because the mean of its divisors is an integer number (690160).

2^1380319 is an apocalyptic number.

1380319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380319 is an equidigital number, since it uses as much as digits as its factorization.

1380319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1380319 is about 1174.8697800182. The cubic root of 1380319 is about 111.3422060968.

The spelling of 1380319 in words is "one million, three hundred eighty thousand, three hundred nineteen".