1149156 has 36 divisors (see below), whose sum is σ = 2938572. Its totient is φ = 378624.

The previous prime is 1149151. The next prime is 1149157. The reversal of 1149156 is 6519411.

It can be written as a sum of positive squares in 2 ways, for example, as 443556 + 705600 = 666^2 + 840^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1149151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4816 + ... + 5048.

It is an arithmetic number, because the mean of its divisors is an integer number (81627).

2^1149156 is an apocalyptic number.

It is an amenable number.

1149156 is an abundant number, since it is smaller than the sum of its proper divisors (1789416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149156 is a wasteful number, since it uses less digits than its factorization.

1149156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 375 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1149156 is about 1071.9869402190. The cubic root of 1149156 is about 104.7433186102.

It can be divided in two parts, 114915 and 6, that added together give a square (114921 = 339²).

The spelling of 1149156 in words is "one million, one hundred forty-nine thousand, one hundred fifty-six".