2158532 has 6 divisors (see below), whose sum is σ = 3777438. Its totient is φ = 1079264.

The previous prime is 2158523. The next prime is 2158547. The reversal of 2158532 is 2358512.

2158532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1943236 + 215296 = 1394^2 + 464^2 .

It is a d-powerful number, because it can be written as 2⁵ + 1 + 5³ + 8⁷ + 5³ + 3¹⁰ + 2¹¹ .

It is a zygodrome in base 3.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 269813 + ... + 269820.

It is an arithmetic number, because the mean of its divisors is an integer number (629573).

2^2158532 is an apocalyptic number.

It is an amenable number.

2158532 is a deficient number, since it is larger than the sum of its proper divisors (1618906).

2158532 is a wasteful number, since it uses less digits than its factorization.

2158532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539637 (or 539635 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 2158532 is about 1469.1943370433. The cubic root of 2158532 is about 129.2367904122.

The spelling of 2158532 in words is "two million, one hundred fifty-eight thousand, five hundred thirty-two".