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BaseRepresentation
bin1000000011101111010101
310222022202121
420003233111
51020044334
6113135541
723645542
oct10035725
93868677
102112469
111213147
1285a5b1
1358c6a8
143cdbc9
hex203bd5

2112469 has 2 divisors, whose sum is σ = 2112470. Its totient is φ = 2112468.

The previous prime is 2112419. The next prime is 2112493. The reversal of 2112469 is 9642112.

2112469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1787569 + 324900 = 1337^2 + 570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2112469 is a prime.

It is a super-2 number, since 2×21124692 = 8925050551922, which contains 22 as substring.

2112469 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056234 + 1056235.

It is an arithmetic number, because the mean of its divisors is an integer number (1056235).

22112469 is an apocalyptic number.

It is an amenable number.

2112469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112469 is an equidigital number, since it uses as much as digits as its factorization.

2112469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 2112469 is about 1453.4335210115. The cubic root of 2112469 is about 128.3108695525.

It can be divided in two parts, 2112 and 469, that multiplied together give a triangular number (990528 = T1407).

The spelling of 2112469 in words is "two million, one hundred twelve thousand, four hundred sixty-nine".