1127261 has 4 divisors (see below), whose sum is σ = 1138524. Its totient is φ = 1116000.

The previous prime is 1127249. The next prime is 1127263. The reversal of 1127261 is 1627211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1627211 = 101 ⋅16111.

It can be written as a sum of positive squares in 2 ways, for example, as 534361 + 592900 = 731^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127261 - 2⁶ = 1127197 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5480 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (284631).

2^1127261 is an apocalyptic number.

It is an amenable number.

1127261 is a deficient number, since it is larger than the sum of its proper divisors (11263).

1127261 is a wasteful number, since it uses less digits than its factorization.

1127261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11262.

The product of its digits is 168, while the sum is 20.

The square root of 1127261 is about 1061.7254824106. The cubic root of 1127261 is about 104.0738196315.

It can be divided in two parts, 11 and 27261, that added together give a palindrome (27272).

The spelling of 1127261 in words is "one million, one hundred twenty-seven thousand, two hundred sixty-one".