132023021 has 4 divisors (see below), whose sum is σ = 142178652. Its totient is φ = 121867392.

The previous prime is 132023011. The next prime is 132023033. The reversal of 132023021 is 120320231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120320231 = 829 ⋅145139.

It can be written as a sum of positive squares in 2 ways, for example, as 7365796 + 124657225 = 2714^2 + 11165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132023021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132022987 and 132023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132023011) 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, 5077796 + ... + 5077821.

It is an arithmetic number, because the mean of its divisors is an integer number (35544663).

Almost surely, 2^132023021 is an apocalyptic number.

It is an amenable number.

132023021 is a deficient number, since it is larger than the sum of its proper divisors (10155631).

132023021 is a wasteful number, since it uses less digits than its factorization.

132023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10155630.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 132023021 is about 11490.1271098278. The cubic root of 132023021 is about 509.1939349226.

Adding to 132023021 its reverse (120320231), we get a palindrome (252343252).

The spelling of 132023021 in words is "one hundred thirty-two million, twenty-three thousand, twenty-one".