106421132 has 18 divisors (see below), whose sum is σ = 189471828. Its totient is φ = 52301848.

The previous prime is 106421131. The next prime is 106421143. The reversal of 106421132 is 231124601.

It is a super-2 number, since 2×106421132² = 22650914672322848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106421131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10103 + ... + 17745.

Almost surely, 2^106421132 is an apocalyptic number.

It is an amenable number.

106421132 is a deficient number, since it is larger than the sum of its proper divisors (83050696).

106421132 is an equidigital number, since it uses as much as digits as its factorization.

106421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765 (or 7704 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 106421132 is about 10316.0618454912. The cubic root of 106421132 is about 473.8882691067. Note that the first 3 decimals are identical.

Adding to 106421132 its reverse (231124601), we get a palindrome (337545733).

The spelling of 106421132 in words is "one hundred six million, four hundred twenty-one thousand, one hundred thirty-two".