2146225 has 9 divisors (see below), whose sum is σ = 2670433. Its totient is φ = 1711120.
The previous prime is 2146219. The next prime is 2146231. The reversal of 2146225 is 5226412.
The square root of 2146225 is 1465.
It is a perfect power (a square), and thus also a powerful number.
It is an interprime number because it is at equal distance from previous prime (2146219) and next prime (2146231).
It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 1806336 = 583^2 + 1344^2 .
It is not a de Polignac number, because 2146225 - 29 = 2145713 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2146196 and 2146205.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7179 + ... + 7471.
22146225 is an apocalyptic number.
2146225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
2146225 is the 1465-th square number.
2146225 is the 733-rd centered octagonal number.
It is an amenable number.
2146225 is a deficient number, since it is larger than the sum of its proper divisors (524208).
2146225 is an frugal number, since it uses more digits than its factorization.
2146225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 596 (or 298 counting only the distinct ones).
The product of its digits is 960, while the sum is 22.
The cubic root of 2146225 is about 128.9907050170.
The spelling of 2146225 in words is "two million, one hundred forty-six thousand, two hundred twenty-five".
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