132159221 has 4 divisors (see below), whose sum is σ = 132284844. Its totient is φ = 132033600.

The previous prime is 132159211. The next prime is 132159229. The reversal of 132159221 is 122951231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29866225 + 102292996 = 5465^2 + 10114^2 .

It is a cyclic number.

It is not a de Polignac number, because 132159221 - 2²² = 127964917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132159229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61220 + ... + 63341.

It is an arithmetic number, because the mean of its divisors is an integer number (33071211).

Almost surely, 2^132159221 is an apocalyptic number.

It is an amenable number.

132159221 is a deficient number, since it is larger than the sum of its proper divisors (125623).

132159221 is a wasteful number, since it uses less digits than its factorization.

132159221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125622.

The product of its digits is 1080, while the sum is 26.

The square root of 132159221 is about 11496.0524094143. The cubic root of 132159221 is about 509.3689760588.

The spelling of 132159221 in words is "one hundred thirty-two million, one hundred fifty-nine thousand, two hundred twenty-one".