32400133 has 4 divisors (see below), whose sum is σ = 32458860. Its totient is φ = 32341408.

The previous prime is 32400131. The next prime is 32400139. The reversal of 32400133 is 33100423.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5846724 + 26553409 = 2418^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 32400133 - 2¹ = 32400131 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 (32400131) 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 3 ways as a sum of consecutive naturals, for example, 28528 + ... + 29641.

It is an arithmetic number, because the mean of its divisors is an integer number (8114715).

Almost surely, 2^32400133 is an apocalyptic number.

It is an amenable number.

32400133 is a deficient number, since it is larger than the sum of its proper divisors (58727).

32400133 is an equidigital number, since it uses as much as digits as its factorization.

32400133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58726.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 32400133 is about 5692.1114711502. Note that the first 3 decimals coincide. The cubic root of 32400133 is about 318.7980069690.

Adding to 32400133 its reverse (33100423), we get a palindrome (65500556).

The spelling of 32400133 in words is "thirty-two million, four hundred thousand, one hundred thirty-three".