132505021 has 8 divisors (see below), whose sum is σ = 153054144. Its totient is φ = 113373120.

The previous prime is 132505019. The next prime is 132505063. The reversal of 132505021 is 120505231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 132505021 - 2¹ = 132505019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132505021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132505081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354105 + ... + 354478.

It is an arithmetic number, because the mean of its divisors is an integer number (19131768).

Almost surely, 2^132505021 is an apocalyptic number.

132505021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

132505021 is a deficient number, since it is larger than the sum of its proper divisors (20549123).

132505021 is a wasteful number, since it uses less digits than its factorization.

132505021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708611.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 132505021 is about 11511.0825294583. The cubic root of 132505021 is about 509.8128507222.

The spelling of 132505021 in words is "one hundred thirty-two million, five hundred five thousand, twenty-one".