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BaseRepresentation
bin1000000011011010011001
310222020220222
420003122121
51020024004
6113125425
723641616
oct10033231
93866828
102111129
111212139
12859875
1358bbb7
143cd50d
152ba7be
hex203699

2111129 has 2 divisors, whose sum is σ = 2111130. Its totient is φ = 2111128.

The previous prime is 2111107. The next prime is 2111159. The reversal of 2111129 is 9211112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 23104 = 1445^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111129 - 212 = 2107033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055564 + 1055565.

It is an arithmetic number, because the mean of its divisors is an integer number (1055565).

22111129 is an apocalyptic number.

It is an amenable number.

2111129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111129 is an equidigital number, since it uses as much as digits as its factorization.

2111129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36, while the sum is 17.

The square root of 2111129 is about 1452.9724704894. The cubic root of 2111129 is about 128.2837333858.

Subtracting from 2111129 its sum of digits (17), we obtain a palindrome (2111112).

The spelling of 2111129 in words is "two million, one hundred eleven thousand, one hundred twenty-nine".