1161172 has 18 divisors (see below), whose sum is σ = 2093658. Its totient is φ = 563472.

The previous prime is 1161169. The next prime is 1161203. The reversal of 1161172 is 2711611.

It can be written as a sum of positive squares in only one way, i.e., 894916 + 266256 = 946^2 + 516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7318 + ... + 7474.

2^1161172 is an apocalyptic number.

It is an amenable number.

1161172 is a deficient number, since it is larger than the sum of its proper divisors (932486).

1161172 is a wasteful number, since it uses less digits than its factorization.

1161172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 202 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 1161172 is about 1077.5769114082. The cubic root of 1161172 is about 105.1071317747.

Adding to 1161172 its reverse (2711611), we get a palindrome (3872783).

The spelling of 1161172 in words is "one million, one hundred sixty-one thousand, one hundred seventy-two".