132455221 has 2 divisors, whose sum is σ = 132455222. Its totient is φ = 132455220.

The previous prime is 132455207. The next prime is 132455243. The reversal of 132455221 is 122554231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118504996 + 13950225 = 10886^2 + 3735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132455221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132455261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66227610 + 66227611.

It is an arithmetic number, because the mean of its divisors is an integer number (66227611).

Almost surely, 2^132455221 is an apocalyptic number.

It is an amenable number.

132455221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132455221 is an equidigital number, since it uses as much as digits as its factorization.

132455221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 25.

The square root of 132455221 is about 11508.9191933908. The cubic root of 132455221 is about 509.7489742465.

The spelling of 132455221 in words is "one hundred thirty-two million, four hundred fifty-five thousand, two hundred twenty-one".