1156326 has 12 divisors (see below), whose sum is σ = 2317932. Its totient is φ = 384564.

The previous prime is 1156307. The next prime is 1156327. The reversal of 1156326 is 6236511.

It is a junction number, because it is equal to n+sod(n) for n = 1156296 and 1156305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2415 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (193161).

2^1156326 is an apocalyptic number.

1156326 is an abundant number, since it is smaller than the sum of its proper divisors (1161606).

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

1156326 is an frugal number, since it uses more digits than its factorization.

1156326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 444 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 1156326 is about 1075.3259970818. The cubic root of 1156326 is about 104.9607109242.

Multiplying 1156326 by its sum of digits (24), we get a square (27751824 = 5268²).

It can be divided in two parts, 115 and 6326, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 1156326 in words is "one million, one hundred fifty-six thousand, three hundred twenty-six".