132759721 has 4 divisors (see below), whose sum is σ = 132797952. Its totient is φ = 132721492.

The previous prime is 132759719. The next prime is 132759733. The reversal of 132759721 is 127957231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 127957231 = 743 ⋅172217.

It is a cyclic number.

It is not a de Polignac number, because 132759721 - 2¹ = 132759719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132759761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13321 + ... + 21046.

It is an arithmetic number, because the mean of its divisors is an integer number (33199488).

Almost surely, 2^132759721 is an apocalyptic number.

It is an amenable number.

132759721 is a deficient number, since it is larger than the sum of its proper divisors (38231).

132759721 is an equidigital number, since it uses as much as digits as its factorization.

132759721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38230.

The product of its digits is 26460, while the sum is 37.

The square root of 132759721 is about 11522.1404695482. The cubic root of 132759721 is about 510.1392942597.

The spelling of 132759721 in words is "one hundred thirty-two million, seven hundred fifty-nine thousand, seven hundred twenty-one".