1170156 has 36 divisors (see below), whose sum is σ = 2961672. Its totient is φ = 359424.

The previous prime is 1170139. The next prime is 1170167. The reversal of 1170156 is 6510711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1740 + ... + 2316.

2^1170156 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 1170156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1480836).

1170156 is an abundant number, since it is smaller than the sum of its proper divisors (1791516).

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

1170156 is a wasteful number, since it uses less digits than its factorization.

1170156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1170156 is about 1081.7374912612. The cubic root of 1170156 is about 105.3775073315.

Adding to 1170156 its reverse (6510711), we get a palindrome (7680867).

It can be divided in two parts, 1170 and 156, that added together give a triangular number (1326 = T₅₁).

The spelling of 1170156 in words is "one million, one hundred seventy thousand, one hundred fifty-six".