132502421 has 4 divisors (see below), whose sum is σ = 137071500. Its totient is φ = 127933344.

The previous prime is 132502361. The next prime is 132502429. The reversal of 132502421 is 124205231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124205231 = 29 ⋅4282939.

It can be written as a sum of positive squares in 2 ways, for example, as 96334225 + 36168196 = 9815^2 + 6014^2 .

It is a cyclic number.

It is not a de Polignac number, because 132502421 - 2¹⁴ = 132486037 is a prime.

It is a super-2 number, since 2×132502421² = 35113783141722482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132502393 and 132502402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132502429) 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 3 ways as a sum of consecutive naturals, for example, 2284496 + ... + 2284553.

It is an arithmetic number, because the mean of its divisors is an integer number (34267875).

Almost surely, 2^132502421 is an apocalyptic number.

It is an amenable number.

132502421 is a deficient number, since it is larger than the sum of its proper divisors (4569079).

132502421 is an equidigital number, since it uses as much as digits as its factorization.

132502421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569078.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 132502421 is about 11510.9695942609. The cubic root of 132502421 is about 509.8095162018.

Adding to 132502421 its reverse (124205231), we get a palindrome (256707652).

The spelling of 132502421 in words is "one hundred thirty-two million, five hundred two thousand, four hundred twenty-one".