132421015 has 4 divisors (see below), whose sum is σ = 158905224. Its totient is φ = 105936808.

The previous prime is 132420997. The next prime is 132421019. The reversal of 132421015 is 510124231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132421015 - 2⁵ = 132420983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132420983 and 132421001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132421019) 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, 13242097 + ... + 13242106.

It is an arithmetic number, because the mean of its divisors is an integer number (39726306).

Almost surely, 2^132421015 is an apocalyptic number.

132421015 is a deficient number, since it is larger than the sum of its proper divisors (26484209).

132421015 is an equidigital number, since it uses as much as digits as its factorization.

132421015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26484208.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 132421015 is about 11507.4330326098. The cubic root of 132421015 is about 509.7050902972.

Adding to 132421015 its reverse (510124231), we get a palindrome (642545246).

The spelling of 132421015 in words is "one hundred thirty-two million, four hundred twenty-one thousand, fifteen".