132421447 has 2 divisors, whose sum is σ = 132421448. Its totient is φ = 132421446.

The previous prime is 132421439. The next prime is 132421477. The reversal of 132421447 is 744124231.

It is a weak prime.

It is an emirp because it is prime and its reverse (744124231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132421447 - 2³ = 132421439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132421417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66210723 + 66210724.

It is an arithmetic number, because the mean of its divisors is an integer number (66210724).

Almost surely, 2^132421447 is an apocalyptic number.

132421447 is a deficient number, since it is larger than the sum of its proper divisors (1).

132421447 is an equidigital number, since it uses as much as digits as its factorization.

132421447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 132421447 is about 11507.4518030709. The cubic root of 132421447 is about 509.7056445706.

Adding to 132421447 its reverse (744124231), we get a palindrome (876545678).

The spelling of 132421447 in words is "one hundred thirty-two million, four hundred twenty-one thousand, four hundred forty-seven".