32133121 has 4 divisors (see below), whose sum is σ = 32378544. Its totient is φ = 31887700.

The previous prime is 32133113. The next prime is 32133173. The reversal of 32133121 is 12133123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12133123 = 359 ⋅33797.

It is a cyclic number.

It is not a de Polignac number, because 32133121 - 2³ = 32133113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32133095 and 32133104.

It is not an unprimeable number, because it can be changed into a prime (32133221) 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, 122515 + ... + 122776.

It is an arithmetic number, because the mean of its divisors is an integer number (8094636).

Almost surely, 2^32133121 is an apocalyptic number.

It is an amenable number.

32133121 is a deficient number, since it is larger than the sum of its proper divisors (245423).

32133121 is a wasteful number, since it uses less digits than its factorization.

32133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245422.

The product of its digits is 108, while the sum is 16.

The square root of 32133121 is about 5668.6083830161. The cubic root of 32133121 is about 317.9198438586.

Adding to 32133121 its reverse (12133123), we get a palindrome (44266244).

The spelling of 32133121 in words is "thirty-two million, one hundred thirty-three thousand, one hundred twenty-one".