132720549 has 16 divisors (see below), whose sum is σ = 190780800. Its totient is φ = 81585216.

The previous prime is 132720521. The next prime is 132720563. The reversal of 132720549 is 945027231.

It is not a de Polignac number, because 132720549 - 2¹² = 132716453 is a prime.

It is a super-2 number, since 2×132720549² = 35229488253722802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132720509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64072 + ... + 66110.

It is an arithmetic number, because the mean of its divisors is an integer number (11923800).

Almost surely, 2^132720549 is an apocalyptic number.

It is an amenable number.

132720549 is a deficient number, since it is larger than the sum of its proper divisors (58060251).

132720549 is a wasteful number, since it uses less digits than its factorization.

132720549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 132720549 is about 11520.4404863703. The cubic root of 132720549 is about 510.0891155308.

The spelling of 132720549 in words is "one hundred thirty-two million, seven hundred twenty thousand, five hundred forty-nine".