13811087 has 2 divisors, whose sum is σ = 13811088. Its totient is φ = 13811086.

The previous prime is 13811053. The next prime is 13811113. The reversal of 13811087 is 78011831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13811087 - 2⁶ = 13811023 is a prime.

It is a super-2 number, since 2×13811087² = 381492248243138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13811387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6905543 + 6905544.

It is an arithmetic number, because the mean of its divisors is an integer number (6905544).

Almost surely, 2^13811087 is an apocalyptic number.

13811087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13811087 is an equidigital number, since it uses as much as digits as its factorization.

13811087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 13811087 is about 3716.3270846361. The cubic root of 13811087 is about 239.9252487108.

The spelling of 13811087 in words is "thirteen million, eight hundred eleven thousand, eighty-seven".