132720502 has 4 divisors (see below), whose sum is σ = 199080756. Its totient is φ = 66360250.

The previous prime is 132720499. The next prime is 132720509. The reversal of 132720502 is 205027231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 205027231 = 191 ⋅1073441.

It is a super-2 number, since 2×132720502² = 35229463302264008, 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33180124 + ... + 33180127.

It is an arithmetic number, because the mean of its divisors is an integer number (49770189).

Almost surely, 2^132720502 is an apocalyptic number.

132720502 is a deficient number, since it is larger than the sum of its proper divisors (66360254).

132720502 is an equidigital number, since it uses as much as digits as its factorization.

132720502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66360253.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 132720502 is about 11520.4384465176. The cubic root of 132720502 is about 510.0890553186.

Adding to 132720502 its reverse (205027231), we get a palindrome (337747733).

The spelling of 132720502 in words is "one hundred thirty-two million, seven hundred twenty thousand, five hundred two".