1161267 has 4 divisors (see below), whose sum is σ = 1548360. Its totient is φ = 774176.

The previous prime is 1161263. The next prime is 1161269. The reversal of 1161267 is 7621611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7621611 = 3 ⋅2540537.

It is a cyclic number.

It is not a de Polignac number, because 1161267 - 2² = 1161263 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1161263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193542 + ... + 193547.

It is an arithmetic number, because the mean of its divisors is an integer number (387090).

2^1161267 is an apocalyptic number.

1161267 is a deficient number, since it is larger than the sum of its proper divisors (387093).

1161267 is an equidigital number, since it uses as much as digits as its factorization.

1161267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387092.

The product of its digits is 504, while the sum is 24.

The square root of 1161267 is about 1077.6209908869. The cubic root of 1161267 is about 105.1099981043.

Adding to 1161267 its reverse (7621611), we get a palindrome (8782878).

The spelling of 1161267 in words is "one million, one hundred sixty-one thousand, two hundred sixty-seven".