132500021 has 2 divisors, whose sum is σ = 132500022. Its totient is φ = 132500020.

The previous prime is 132499973. The next prime is 132500041. The reversal of 132500021 is 120005231.

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., 117180625 + 15319396 = 10825^2 + 3914^2 .

It is an emirp because it is prime and its reverse (120005231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132500021 - 2⁶ = 132499957 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 132499969 and 132500005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132500041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66250010 + 66250011.

It is an arithmetic number, because the mean of its divisors is an integer number (66250011).

Almost surely, 2^132500021 is an apocalyptic number.

It is an amenable number.

132500021 is a deficient number, since it is larger than the sum of its proper divisors (1).

132500021 is an equidigital number, since it uses as much as digits as its factorization.

132500021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 132500021 is about 11510.8653454030. The cubic root of 132500021 is about 509.8064381443.

Adding to 132500021 its reverse (120005231), we get a palindrome (252505252).

The spelling of 132500021 in words is "one hundred thirty-two million, five hundred thousand, twenty-one".