132621556 has 12 divisors (see below), whose sum is σ = 245740068. Its totient is φ = 62410112.

The previous prime is 132621551. The next prime is 132621563. The reversal of 132621556 is 655126231.

It can be written as a sum of positive squares in 2 ways, for example, as 35283600 + 97337956 = 5940^2 + 9866^2 .

It is a super-2 number, since 2×132621556² = 35176954231722272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132621551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975091 + ... + 975226.

It is an arithmetic number, because the mean of its divisors is an integer number (20478339).

Almost surely, 2^132621556 is an apocalyptic number.

It is an amenable number.

132621556 is a deficient number, since it is larger than the sum of its proper divisors (113118512).

132621556 is a wasteful number, since it uses less digits than its factorization.

132621556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950338 (or 1950336 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 132621556 is about 11516.1432780250. The cubic root of 132621556 is about 509.9622630030.

Adding to 132621556 its reverse (655126231), we get a palindrome (787747787).

The spelling of 132621556 in words is "one hundred thirty-two million, six hundred twenty-one thousand, five hundred fifty-six".