132257821 has 8 divisors (see below), whose sum is σ = 135241344. Its totient is φ = 129300720.

The previous prime is 132257819. The next prime is 132257849. The reversal of 132257821 is 128752231.

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 132257821 - 2¹ = 132257819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132257861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3696 + ... + 16678.

It is an arithmetic number, because the mean of its divisors is an integer number (16905168).

Almost surely, 2^132257821 is an apocalyptic number.

It is an amenable number.

132257821 is a deficient number, since it is larger than the sum of its proper divisors (2983523).

132257821 is a wasteful number, since it uses less digits than its factorization.

132257821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13211.

The product of its digits is 6720, while the sum is 31.

The square root of 132257821 is about 11500.3400384510. The cubic root of 132257821 is about 509.4956195012.

The spelling of 132257821 in words is "one hundred thirty-two million, two hundred fifty-seven thousand, eight hundred twenty-one".