11365391 has 2 divisors, whose sum is σ = 11365392. Its totient is φ = 11365390.

The previous prime is 11365369. The next prime is 11365423. The reversal of 11365391 is 19356311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11365391 - 2¹⁸ = 11103247 is a prime.

It is a super-2 number, since 2×11365391² = 258344225165762, which contains 22 as substring.

It is equal to p₇₄₉₀₁₈ and since 11365391 and 749018 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11365301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5682695 + 5682696.

It is an arithmetic number, because the mean of its divisors is an integer number (5682696).

Almost surely, 2^11365391 is an apocalyptic number.

11365391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11365391 is an equidigital number, since it uses as much as digits as its factorization.

11365391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 29.

The square root of 11365391 is about 3371.2595569015. The cubic root of 11365391 is about 224.8337273623.

The spelling of 11365391 in words is "eleven million, three hundred sixty-five thousand, three hundred ninety-one".