1191267 has 40 divisors (see below), whose sum is σ = 2230272. Its totient is φ = 615600.

The previous prime is 1191247. The next prime is 1191277. The reversal of 1191267 is 7621911.

It is not a de Polignac number, because 1191267 - 2⁸ = 1191011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1191267 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1191267.

It is not an unprimeable number, because it can be changed into a prime (1191247) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6142 + ... + 6332.

2^1191267 is an apocalyptic number.

1191267 is a deficient number, since it is larger than the sum of its proper divisors (1039005).

1191267 is a wasteful number, since it uses less digits than its factorization.

1191267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 212 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 1191267 is about 1091.4517854674. The cubic root of 1191267 is about 106.0074457805.

The spelling of 1191267 in words is "one million, one hundred ninety-one thousand, two hundred sixty-seven".