1140156 has 84 divisors (see below), whose sum is σ = 3305232. Its totient is φ = 342144.

The previous prime is 1140143. The next prime is 1140157. The reversal of 1140156 is 6510411.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 49561 + ... + 49583.

It is an arithmetic number, because the mean of its divisors is an integer number (39348).

2^1140156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1652616).

1140156 is an abundant number, since it is smaller than the sum of its proper divisors (2165076).

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

1140156 is a wasteful number, since it uses less digits than its factorization.

1140156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1140156 is about 1067.7808763974. The cubic root of 1140156 is about 104.4691575074.

Adding to 1140156 its reverse (6510411), we get a palindrome (7650567).

It can be divided in two parts, 1140 and 156, that added together give a 4-th power (1296 = 6⁴).

The spelling of 1140156 in words is "one million, one hundred forty thousand, one hundred fifty-six".