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11125 = 5389
BaseRepresentation
bin10101101110101
3120021001
42231311
5324000
6123301
744302
oct25565
916231
1011125
1183a4
126531
1350aa
1440a9
15346a
hex2b75

11125 has 8 divisors (see below), whose sum is σ = 14040. Its totient is φ = 8800.

The previous prime is 11119. The next prime is 11131. The reversal of 11125 is 52111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11119) and next prime (11131).

It can be written as a sum of positive squares in 4 ways, for example, as 1521 + 9604 = 39^2 + 98^2 .

It is not a de Polignac number, because 11125 - 23 = 11117 is a prime.

It is a plaindrome in base 10 and base 15.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81 + ... + 169.

It is an arithmetic number, because the mean of its divisors is an integer number (1755).

211125 is an apocalyptic number.

It is an amenable number.

11125 is a deficient number, since it is larger than the sum of its proper divisors (2915).

11125 is an frugal number, since it uses more digits than its factorization.

11125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 94 counting only the distinct ones).

The product of its digits is 10, while the sum is 10.

The square root of 11125 is about 105.4751155486. The cubic root of 11125 is about 22.3237254779.

Adding to 11125 its reverse (52111), we get a palindrome (63236).

It can be divided in two parts, 111 and 25, that multiplied together give a triangular number (2775 = T74).

The spelling of 11125 in words is "eleven thousand, one hundred twenty-five".

Divisors: 1 5 25 89 125 445 2225 11125