1295221 has 2 divisors, whose sum is σ = 1295222. Its totient is φ = 1295220.

The previous prime is 1295219. The next prime is 1295243. The reversal of 1295221 is 1225921.

It is an a-pointer prime, because the next prime (1295243) can be obtained adding 1295221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 192721 = 1050^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295221 - 2¹ = 1295219 is a prime.

Together with 1295219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1295192 and 1295201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647610 + 647611.

It is an arithmetic number, because the mean of its divisors is an integer number (647611).

2^1295221 is an apocalyptic number.

It is an amenable number.

1295221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295221 is an equidigital number, since it uses as much as digits as its factorization.

1295221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 22.

The square root of 1295221 is about 1138.0777653570. The cubic root of 1295221 is about 109.0053864858.

The spelling of 1295221 in words is "one million, two hundred ninety-five thousand, two hundred twenty-one".