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2130493 is a prime number
BaseRepresentation
bin1000001000001000111101
311000020111011
420020020331
51021133433
6113355221
724052231
oct10101075
94006434
102130493
111225742
12868b11
13597961
143d65c1
152c13cd
hex20823d

2130493 has 2 divisors, whose sum is σ = 2130494. Its totient is φ = 2130492.

The previous prime is 2130473. The next prime is 2130503. The reversal of 2130493 is 3940312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 777924 = 1163^2 + 882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130493 - 25 = 2130461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065246 + 1065247.

It is an arithmetic number, because the mean of its divisors is an integer number (1065247).

22130493 is an apocalyptic number.

It is an amenable number.

2130493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130493 is an equidigital number, since it uses as much as digits as its factorization.

2130493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2130493 is about 1459.6208411776. The cubic root of 2130493 is about 128.6747610802.

The spelling of 2130493 in words is "two million, one hundred thirty thousand, four hundred ninety-three".