1371899 has 2 divisors, whose sum is σ = 1371900. Its totient is φ = 1371898.

The previous prime is 1371893. The next prime is 1371911. The reversal of 1371899 is 9981731.

It is a weak prime.

It is an emirp because it is prime and its reverse (9981731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1371899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1371893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685949 + 685950.

It is an arithmetic number, because the mean of its divisors is an integer number (685950).

2^1371899 is an apocalyptic number.

1371899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371899 is an equidigital number, since it uses as much as digits as its factorization.

1371899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 38.

The square root of 1371899 is about 1171.2809227508. The cubic root of 1371899 is about 111.1153469126.

The spelling of 1371899 in words is "one million, three hundred seventy-one thousand, eight hundred ninety-nine".