32142021 has 4 divisors (see below), whose sum is σ = 42856032. Its totient is φ = 21428012.

The previous prime is 32142013. The next prime is 32142041. The reversal of 32142021 is 12024123.

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.

It is a cyclic number.

It is not a de Polignac number, because 32142021 - 2³ = 32142013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32142041) 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, 5357001 + ... + 5357006.

It is an arithmetic number, because the mean of its divisors is an integer number (10714008).

Almost surely, 2^32142021 is an apocalyptic number.

It is an amenable number.

32142021 is a deficient number, since it is larger than the sum of its proper divisors (10714011).

32142021 is a wasteful number, since it uses less digits than its factorization.

32142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10714010.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 32142021 is about 5669.3933537902. The cubic root of 32142021 is about 317.9491928639.

Adding to 32142021 its reverse (12024123), we get a palindrome (44166144).

The spelling of 32142021 in words is "thirty-two million, one hundred forty-two thousand, twenty-one".