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2015125223 is a prime number
BaseRepresentation
bin111100000011100…
…0101111011100111
312012102210222010112
41320013011323213
513111333001343
6531543043235
7100636165436
oct17007057347
95172728115
102015125223
11944538451
12482a4051b
132616419b7
141518b511d
15bbd9e218
hex781c5ee7

2015125223 has 2 divisors, whose sum is σ = 2015125224. Its totient is φ = 2015125222.

The previous prime is 2015125219. The next prime is 2015125253. The reversal of 2015125223 is 3225215102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2015125223 - 22 = 2015125219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015125213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007562611 + 1007562612.

It is an arithmetic number, because the mean of its divisors is an integer number (1007562612).

Almost surely, 22015125223 is an apocalyptic number.

2015125223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015125223 is an equidigital number, since it uses as much as digits as its factorization.

2015125223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2015125223 is about 44890.1461681737. The cubic root of 2015125223 is about 1263.0891746410.

The spelling of 2015125223 in words is "two billion, fifteen million, one hundred twenty-five thousand, two hundred twenty-three".