132549421 has 2 divisors, whose sum is σ = 132549422. Its totient is φ = 132549420.

The previous prime is 132549419. The next prime is 132549451. The reversal of 132549421 is 124945231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127373796 + 5175625 = 11286^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 132549421 - 2¹ = 132549419 is a prime.

Together with 132549419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132549451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66274710 + 66274711.

It is an arithmetic number, because the mean of its divisors is an integer number (66274711).

Almost surely, 2^132549421 is an apocalyptic number.

It is an amenable number.

132549421 is a deficient number, since it is larger than the sum of its proper divisors (1).

132549421 is an equidigital number, since it uses as much as digits as its factorization.

132549421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 132549421 is about 11513.0109441449. The cubic root of 132549421 is about 509.8697873389.

The spelling of 132549421 in words is "one hundred thirty-two million, five hundred forty-nine thousand, four hundred twenty-one".