1270609 has 2 divisors, whose sum is σ = 1270610. Its totient is φ = 1270608.

The previous prime is 1270579. The next prime is 1270627. The reversal of 1270609 is 9060721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 451584 = 905^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270609 - 2⁹ = 1270097 is a prime.

It is a super-2 number, since 2×1270609² = 3228894461762, which contains 22 as substring.

1270609 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1270639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635304 + 635305.

It is an arithmetic number, because the mean of its divisors is an integer number (635305).

2^1270609 is an apocalyptic number.

It is an amenable number.

1270609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270609 is an equidigital number, since it uses as much as digits as its factorization.

1270609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1270609 is about 1127.2129346313. The cubic root of 1270609 is about 108.3105203772.

The spelling of 1270609 in words is "one million, two hundred seventy thousand, six hundred nine".