132721130 has 8 divisors (see below), whose sum is σ = 238898052. Its totient is φ = 53088448.

The previous prime is 132721129. The next prime is 132721151. The reversal of 132721130 is 31127231.

It can be written as a sum of positive squares in 2 ways, for example, as 129800449 + 2920681 = 11393^2 + 1709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×132721130² = 35229796696953800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6636047 + ... + 6636066.

Almost surely, 2^132721130 is an apocalyptic number.

132721130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

132721130 is a deficient number, since it is larger than the sum of its proper divisors (106176922).

132721130 is a wasteful number, since it uses less digits than its factorization.

132721130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13272120.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 132721130 is about 11520.4657023924. The cubic root of 132721130 is about 510.0898598550.

Adding to 132721130 its reverse (31127231), we get a palindrome (163848361).

The spelling of 132721130 in words is "one hundred thirty-two million, seven hundred twenty-one thousand, one hundred thirty".