1261027 has 4 divisors (see below), whose sum is σ = 1268176. Its totient is φ = 1253880.

The previous prime is 1260991. The next prime is 1261033. The reversal of 1261027 is 7201621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7201621 = 7 ⋅1028803.

It is a cyclic number.

It is not a de Polignac number, because 1261027 - 2⁷ = 1260899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1260995 and 1261013.

It is not an unprimeable number, because it can be changed into a prime (1261327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3303 + ... + 3664.

It is an arithmetic number, because the mean of its divisors is an integer number (317044).

2^1261027 is an apocalyptic number.

1261027 is a deficient number, since it is larger than the sum of its proper divisors (7149).

1261027 is an equidigital number, since it uses as much as digits as its factorization.

1261027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1261027 is about 1122.9545850122. The cubic root of 1261027 is about 108.0375669494.

Adding to 1261027 its reverse (7201621), we get a palindrome (8462648).

The spelling of 1261027 in words is "one million, two hundred sixty-one thousand, twenty-seven".