1165230 has 72 divisors (see below), whose sum is σ = 3361176. Its totient is φ = 279840.

The previous prime is 1165223. The next prime is 1165273. The reversal of 1165230 is 325611.

Added to its reverse (325611) it gives a square (1490841 = 1221²).

1165230 is a `hidden beast` number, since 11 + 652 + 3 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10837 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (46683).

2^1165230 is an apocalyptic number.

1165230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680588).

1165230 is an abundant number, since it is smaller than the sum of its proper divisors (2195946).

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

1165230 is a wasteful number, since it uses less digits than its factorization.

1165230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1165230 is about 1079.4581974305. The cubic root of 1165230 is about 105.2294302909.

Adding to 1165230 its reverse (325611), we get a square (1490841 = 1221²).

The spelling of 1165230 in words is "one million, one hundred sixty-five thousand, two hundred thirty".