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2159069 = 11196279
BaseRepresentation
bin1000001111000111011101
311001200200112
420033013131
51023042234
6114135405
724231443
oct10170735
94050615
102159069
111245160
12881565
135a7973
14402b93
152c9ace
hex20f1dd

2159069 has 4 divisors (see below), whose sum is σ = 2355360. Its totient is φ = 1962780.

The previous prime is 2159063. The next prime is 2159081. The reversal of 2159069 is 9609512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2159069 - 212 = 2154973 is a prime.

It is a super-2 number, since 2×21590692 = 9323157893522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98129 + ... + 98150.

It is an arithmetic number, because the mean of its divisors is an integer number (588840).

22159069 is an apocalyptic number.

It is an amenable number.

2159069 is a deficient number, since it is larger than the sum of its proper divisors (196291).

2159069 is a wasteful number, since it uses less digits than its factorization.

2159069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196290.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 2159069 is about 1469.3770789011. The cubic root of 2159069 is about 129.2475067080.

The spelling of 2159069 in words is "two million, one hundred fifty-nine thousand, sixty-nine".

Divisors: 1 11 196279 2159069