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2138371 is a prime number
BaseRepresentation
bin1000001010000100000011
311000122021221
420022010003
51021411441
6113455511
724114214
oct10120403
94018257
102138371
111230654
12871597
1359b411
143d940b
152c38d1
hex20a103

2138371 has 2 divisors, whose sum is σ = 2138372. Its totient is φ = 2138370.

The previous prime is 2138363. The next prime is 2138377. The reversal of 2138371 is 1738312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2138371 - 23 = 2138363 is a prime.

It is a super-3 number, since 3×21383713 = 29333941580557316433, which contains 333 as substring.

2138371 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2138377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069185 + 1069186.

It is an arithmetic number, because the mean of its divisors is an integer number (1069186).

22138371 is an apocalyptic number.

2138371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138371 is an equidigital number, since it uses as much as digits as its factorization.

2138371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 2138371 is about 1462.3169970974. The cubic root of 2138371 is about 128.8331677438.

The spelling of 2138371 in words is "two million, one hundred thirty-eight thousand, three hundred seventy-one".