1370819 has 2 divisors, whose sum is σ = 1370820. Its totient is φ = 1370818.

The previous prime is 1370779. The next prime is 1370821. The reversal of 1370819 is 9180731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1370819 - 2²⁰ = 322243 is a prime.

It is a super-2 number, since 2×1370819² = 3758289461522, which contains 22 as substring.

Together with 1370821, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1370791 and 1370800.

It is not a weakly prime, because it can be changed into another prime (1370839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685409 + 685410.

It is an arithmetic number, because the mean of its divisors is an integer number (685410).

2^1370819 is an apocalyptic number.

1370819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370819 is an equidigital number, since it uses as much as digits as its factorization.

1370819 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 1370819 is about 1170.8197982610. The cubic root of 1370819 is about 111.0861814811.

The spelling of 1370819 in words is "one million, three hundred seventy thousand, eight hundred nineteen".