Search a number
-
+
13811159 is a prime number
BaseRepresentation
bin110100101011…
…110111010111
3221222200100102
4310223313113
512013424114
61212004315
7225251525
oct64536727
927880312
1013811159
11788358a
12476069b
132b274ab
141b97315
15132c2de
hexd2bdd7

13811159 has 2 divisors, whose sum is σ = 13811160. Its totient is φ = 13811158.

The previous prime is 13811131. The next prime is 13811173. The reversal of 13811159 is 95111831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13811159 - 212 = 13807063 is a prime.

It is a super-2 number, since 2×138111592 = 381496225846562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13811359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6905579 + 6905580.

It is an arithmetic number, because the mean of its divisors is an integer number (6905580).

Almost surely, 213811159 is an apocalyptic number.

13811159 is a deficient number, since it is larger than the sum of its proper divisors (1).

13811159 is an equidigital number, since it uses as much as digits as its factorization.

13811159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 29.

The square root of 13811159 is about 3716.3367716072. The cubic root of 13811159 is about 239.9256656365.

The spelling of 13811159 in words is "thirteen million, eight hundred eleven thousand, one hundred fifty-nine".