1161207 has 6 divisors (see below), whose sum is σ = 1677312. Its totient is φ = 774132.

The previous prime is 1161203. The next prime is 1161217. The reversal of 1161207 is 7021611.

It is not a de Polignac number, because 1161207 - 2² = 1161203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64503 + ... + 64520.

It is an arithmetic number, because the mean of its divisors is an integer number (279552).

2^1161207 is an apocalyptic number.

1161207 is a deficient number, since it is larger than the sum of its proper divisors (516105).

1161207 is a wasteful number, since it uses less digits than its factorization.

1161207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129029 (or 129026 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1161207 is about 1077.5931514259. The cubic root of 1161207 is about 105.1081878090.

Adding to 1161207 its reverse (7021611), we get a palindrome (8182818).

The spelling of 1161207 in words is "one million, one hundred sixty-one thousand, two hundred seven".