132221555 has 8 divisors (see below), whose sum is σ = 158733744. Its totient is φ = 105732000.

The previous prime is 132221533. The next prime is 132221561. The reversal of 132221555 is 555122231.

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

It is not a de Polignac number, because 132221555 - 2⁶ = 132221491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12500 + ... + 20510.

It is an arithmetic number, because the mean of its divisors is an integer number (19841718).

Almost surely, 2^132221555 is an apocalyptic number.

132221555 is a deficient number, since it is larger than the sum of its proper divisors (26512189).

132221555 is an equidigital number, since it uses as much as digits as its factorization.

132221555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317.

The product of its digits is 3000, while the sum is 26.

The square root of 132221555 is about 11498.7631943614. The cubic root of 132221555 is about 509.4490461817.

Adding to 132221555 its reverse (555122231), we get a palindrome (687343786).

The spelling of 132221555 in words is "one hundred thirty-two million, two hundred twenty-one thousand, five hundred fifty-five".