1295561 has 2 divisors, whose sum is σ = 1295562. Its totient is φ = 1295560.

The previous prime is 1295551. The next prime is 1295563. The reversal of 1295561 is 1655921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177225 + 118336 = 1085^2 + 344^2 .

It is an emirp because it is prime and its reverse (1655921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1295561 - 2¹⁴ = 1279177 is a prime.

Together with 1295563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1295563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647780 + 647781.

It is an arithmetic number, because the mean of its divisors is an integer number (647781).

2^1295561 is an apocalyptic number.

It is an amenable number.

1295561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295561 is an equidigital number, since it uses as much as digits as its factorization.

1295561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 29.

The square root of 1295561 is about 1138.2271302337. The cubic root of 1295561 is about 109.0149237485.

The spelling of 1295561 in words is "one million, two hundred ninety-five thousand, five hundred sixty-one".