1369391 has 2 divisors, whose sum is σ = 1369392. Its totient is φ = 1369390.

The previous prime is 1369373. The next prime is 1369393. The reversal of 1369391 is 1939631.

It is a strong prime.

It is an emirp because it is prime and its reverse (1939631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1369391 - 2¹⁴ = 1353007 is a prime.

It is a Sophie Germain prime.

Together with 1369393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1369393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684695 + 684696.

It is an arithmetic number, because the mean of its divisors is an integer number (684696).

2^1369391 is an apocalyptic number.

1369391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1369391 is an equidigital number, since it uses as much as digits as its factorization.

1369391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374, while the sum is 32.

The square root of 1369391 is about 1170.2098102477. The cubic root of 1369391 is about 111.0475947721.

The spelling of 1369391 in words is "one million, three hundred sixty-nine thousand, three hundred ninety-one".