1365919 has 2 divisors, whose sum is σ = 1365920. Its totient is φ = 1365918.

The previous prime is 1365913. The next prime is 1365977. The reversal of 1365919 is 9195631.

It is a weak prime.

It is an emirp because it is prime and its reverse (9195631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1365919 - 2³ = 1365911 is a prime.

It is a super-2 number, since 2×1365919² = 3731469429122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1365911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682959 + 682960.

It is an arithmetic number, because the mean of its divisors is an integer number (682960).

2^1365919 is an apocalyptic number.

1365919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365919 is an equidigital number, since it uses as much as digits as its factorization.

1365919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 34.

The square root of 1365919 is about 1168.7253740721. The cubic root of 1365919 is about 110.9536640733.

The spelling of 1365919 in words is "one million, three hundred sixty-five thousand, nine hundred nineteen".