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225671 is a prime number
BaseRepresentation
bin110111000110000111
3102110120012
4313012013
524210141
64500435
71626635
oct670607
9373505
10225671
11144606
12aa71b
137b944
145c355
1546ceb
hex37187

225671 has 2 divisors, whose sum is σ = 225672. Its totient is φ = 225670.

The previous prime is 225637. The next prime is 225683. The reversal of 225671 is 176522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225671 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112835 + 112836.

It is an arithmetic number, because the mean of its divisors is an integer number (112836).

2225671 is an apocalyptic number.

225671 is a deficient number, since it is larger than the sum of its proper divisors (1).

225671 is an equidigital number, since it uses as much as digits as its factorization.

225671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 23.

The square root of 225671 is about 475.0484185849. The cubic root of 225671 is about 60.8824215450.

It can be divided in two parts, 225 and 671, that multiplied together give a triangular number (150975 = T549).

The spelling of 225671 in words is "two hundred twenty-five thousand, six hundred seventy-one".