132020247 has 4 divisors (see below), whose sum is σ = 176027000. Its totient is φ = 88013496.

The previous prime is 132020243. The next prime is 132020261. The reversal of 132020247 is 742020231.

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

It is not a de Polignac number, because 132020247 - 2² = 132020243 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 (132020243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22003372 + ... + 22003377.

It is an arithmetic number, because the mean of its divisors is an integer number (44006750).

Almost surely, 2^132020247 is an apocalyptic number.

132020247 is a deficient number, since it is larger than the sum of its proper divisors (44006753).

132020247 is an equidigital number, since it uses as much as digits as its factorization.

132020247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44006752.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 132020247 is about 11490.0063968651. The cubic root of 132020247 is about 509.1903685904.

Adding to 132020247 its reverse (742020231), we get a palindrome (874040478).

The spelling of 132020247 in words is "one hundred thirty-two million, twenty thousand, two hundred forty-seven".