132158021 has 2 divisors, whose sum is σ = 132158022. Its totient is φ = 132158020.

The previous prime is 132158011. The next prime is 132158029. The reversal of 132158021 is 120851231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118504996 + 13653025 = 10886^2 + 3695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132158021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132158029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66079010 + 66079011.

It is an arithmetic number, because the mean of its divisors is an integer number (66079011).

Almost surely, 2^132158021 is an apocalyptic number.

It is an amenable number.

132158021 is a deficient number, since it is larger than the sum of its proper divisors (1).

132158021 is an equidigital number, since it uses as much as digits as its factorization.

132158021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 132158021 is about 11496.0002174669. Note that the first 3 decimals coincide. The cubic root of 132158021 is about 509.3674343714.

The spelling of 132158021 in words is "one hundred thirty-two million, one hundred fifty-eight thousand, twenty-one".