1159542 has 32 divisors (see below), whose sum is σ = 2613600. Its totient is φ = 381024.

The previous prime is 1159541. The next prime is 1159577. The reversal of 1159542 is 2459511.

1159542 is a `hidden beast` number, since 115 + 9 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159541) 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 15 ways as a sum of consecutive naturals, for example, 5788 + ... + 5984.

It is an arithmetic number, because the mean of its divisors is an integer number (81675).

2^1159542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306800).

1159542 is an abundant number, since it is smaller than the sum of its proper divisors (1454058).

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

1159542 is a wasteful number, since it uses less digits than its factorization.

1159542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 311 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 1159542 is about 1076.8203192734. The cubic root of 1159542 is about 105.0579272201.

The spelling of 1159542 in words is "one million, one hundred fifty-nine thousand, five hundred forty-two".