1151156 has 6 divisors (see below), whose sum is σ = 2014530. Its totient is φ = 575576.

The previous prime is 1151147. The next prime is 1151159. The reversal of 1151156 is 6511511.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 27556 = 1060^2 + 166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143891 + ... + 143898.

It is an arithmetic number, because the mean of its divisors is an integer number (335755).

2^1151156 is an apocalyptic number.

It is an amenable number.

1151156 is a deficient number, since it is larger than the sum of its proper divisors (863374).

1151156 is a wasteful number, since it uses less digits than its factorization.

1151156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287793 (or 287791 counting only the distinct ones).

The product of its digits is 150, while the sum is 20.

The square root of 1151156 is about 1072.9193818736. The cubic root of 1151156 is about 104.8040487529.

Adding to 1151156 its reverse (6511511), we get a palindrome (7662667).

The spelling of 1151156 in words is "one million, one hundred fifty-one thousand, one hundred fifty-six".