32130533 has 4 divisors (see below), whose sum is σ = 32414988. Its totient is φ = 31846080.

The previous prime is 32130529. The next prime is 32130551. The reversal of 32130533 is 33503123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33503123 = 5077 ⋅6599.

It can be written as a sum of positive squares in 2 ways, for example, as 4072324 + 28058209 = 2018^2 + 5297^2 .

It is a cyclic number.

It is not a de Polignac number, because 32130533 - 2² = 32130529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32130523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142058 + ... + 142283.

It is an arithmetic number, because the mean of its divisors is an integer number (8103747).

Almost surely, 2^32130533 is an apocalyptic number.

It is an amenable number.

32130533 is a deficient number, since it is larger than the sum of its proper divisors (284455).

32130533 is a wasteful number, since it uses less digits than its factorization.

32130533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284454.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 32130533 is about 5668.3801036981. The cubic root of 32130533 is about 317.9113085465.

Adding to 32130533 its reverse (33503123), we get a palindrome (65633656).

The spelling of 32130533 in words is "thirty-two million, one hundred thirty thousand, five hundred thirty-three".