1381907 has 2 divisors, whose sum is σ = 1381908. Its totient is φ = 1381906.

The previous prime is 1381901. The next prime is 1381921. The reversal of 1381907 is 7091831.

It is a weak prime.

It is an emirp because it is prime and its reverse (7091831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1381907 - 2¹² = 1377811 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1381907.

It is not a weakly prime, because it can be changed into another prime (1381901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690953 + 690954.

It is an arithmetic number, because the mean of its divisors is an integer number (690954).

2^1381907 is an apocalyptic number.

1381907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381907 is an equidigital number, since it uses as much as digits as its factorization.

1381907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1381907 is about 1175.5454053332. The cubic root of 1381907 is about 111.3848879363.

The spelling of 1381907 in words is "one million, three hundred eighty-one thousand, nine hundred seven".