1380307 has 2 divisors, whose sum is σ = 1380308. Its totient is φ = 1380306.

The previous prime is 1380289. The next prime is 1380317. The reversal of 1380307 is 7030831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380307 is a prime.

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, 690153 + 690154.

It is an arithmetic number, because the mean of its divisors is an integer number (690154).

2^1380307 is an apocalyptic number.

1380307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380307 is an equidigital number, since it uses as much as digits as its factorization.

1380307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1380307 is about 1174.8646730581. The cubic root of 1380307 is about 111.3418834394.

It can be divided in two parts, 1380 and 307, that multiplied together give a triangular number (423660 = T₉₂₀).

The spelling of 1380307 in words is "one million, three hundred eighty thousand, three hundred seven".