132020647 has 4 divisors (see below), whose sum is σ = 144022536. Its totient is φ = 120018760.

The previous prime is 132020641. The next prime is 132020663. The reversal of 132020647 is 746020231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132020647 - 2³ = 132020639 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 (132020641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6000928 + ... + 6000949.

It is an arithmetic number, because the mean of its divisors is an integer number (36005634).

Almost surely, 2^132020647 is an apocalyptic number.

132020647 is a deficient number, since it is larger than the sum of its proper divisors (12001889).

132020647 is a wasteful number, since it uses less digits than its factorization.

132020647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001888.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 132020647 is about 11490.0238032826. The cubic root of 132020647 is about 509.1908828447.

Adding to 132020647 its reverse (746020231), we get a palindrome (878040878).

The spelling of 132020647 in words is "one hundred thirty-two million, twenty thousand, six hundred forty-seven".