132021345 has 16 divisors (see below), whose sum is σ = 213174720. Its totient is φ = 69764544.

The previous prime is 132021319. The next prime is 132021347. The reversal of 132021345 is 543120231.

It is not a de Polignac number, because 132021345 - 2⁸ = 132021089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132021347) 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 15 ways as a sum of consecutive naturals, for example, 38739 + ... + 42008.

It is an arithmetic number, because the mean of its divisors is an integer number (13323420).

Almost surely, 2^132021345 is an apocalyptic number.

132021345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

132021345 is a deficient number, since it is larger than the sum of its proper divisors (81153375).

132021345 is a wasteful number, since it uses less digits than its factorization.

132021345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80864.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 132021345 is about 11490.0541774180. The cubic root of 132021345 is about 509.1917802160.

Adding to 132021345 its reverse (543120231), we get a palindrome (675141576).

The spelling of 132021345 in words is "one hundred thirty-two million, twenty-one thousand, three hundred forty-five".