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2112154027 is a prime number
BaseRepresentation
bin111110111100100…
…1110100110101011
312110012101112121221
41331321032212223
513311202412102
6545330442511
7103225004314
oct17571164653
95405345557
102112154027
1199428a645
124ab433437
13278784ca9
1416073160b
15c5668637
hex7de4e9ab

2112154027 has 2 divisors, whose sum is σ = 2112154028. Its totient is φ = 2112154026.

The previous prime is 2112153977. The next prime is 2112154061. The reversal of 2112154027 is 7204512112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2112154027 is a prime.

It is a super-2 number, since 2×21121540272 = 8922389267544633458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112153992 and 2112154010.

It is not a weakly prime, because it can be changed into another prime (2110154027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056077013 + 1056077014.

It is an arithmetic number, because the mean of its divisors is an integer number (1056077014).

Almost surely, 22112154027 is an apocalyptic number.

2112154027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112154027 is an equidigital number, since it uses as much as digits as its factorization.

2112154027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2112154027 is about 45958.1769329463. The cubic root of 2112154027 is about 1283.0449210691.

Adding to 2112154027 its reverse (7204512112), we get a palindrome (9316666139).

The spelling of 2112154027 in words is "two billion, one hundred twelve million, one hundred fifty-four thousand, twenty-seven".