132539989 has 2 divisors, whose sum is σ = 132539990. Its totient is φ = 132539988.

The previous prime is 132539987. The next prime is 132539999. The reversal of 132539989 is 989935231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103022500 + 29517489 = 10150^2 + 5433^2 .

It is an emirp because it is prime and its reverse (989935231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132539989 - 2¹ = 132539987 is a prime.

Together with 132539987, 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 (132539983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66269994 + 66269995.

It is an arithmetic number, because the mean of its divisors is an integer number (66269995).

Almost surely, 2^132539989 is an apocalyptic number.

It is an amenable number.

132539989 is a deficient number, since it is larger than the sum of its proper divisors (1).

132539989 is an equidigital number, since it uses as much as digits as its factorization.

132539989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The square root of 132539989 is about 11512.6013133436. The cubic root of 132539989 is about 509.8576932187.

It can be divided in two parts, 1325 and 39989, that added together give a palindrome (41314).

The spelling of 132539989 in words is "one hundred thirty-two million, five hundred thirty-nine thousand, nine hundred eighty-nine".