132821631 has 6 divisors (see below), whose sum is σ = 191853480. Its totient is φ = 88547748.

The previous prime is 132821627. The next prime is 132821641. The reversal of 132821631 is 136128231.

It is a happy number.

132821631 is a `hidden beast` number, since 1 + 3 + 2 + 8 + 21 + 631 = 666.

It is not a de Polignac number, because 132821631 - 2² = 132821627 is a prime.

It is a super-2 number, since 2×132821631² = 35283171323000322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132821595 and 132821604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132821641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7378971 + ... + 7378988.

It is an arithmetic number, because the mean of its divisors is an integer number (31975580).

Almost surely, 2^132821631 is an apocalyptic number.

132821631 is a deficient number, since it is larger than the sum of its proper divisors (59031849).

132821631 is a wasteful number, since it uses less digits than its factorization.

132821631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14757965 (or 14757962 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 132821631 is about 11524.8267232093. The cubic root of 132821631 is about 510.2185798930.

Adding to 132821631 its reverse (136128231), we get a palindrome (268949862).

The spelling of 132821631 in words is "one hundred thirty-two million, eight hundred twenty-one thousand, six hundred thirty-one".