32135421 has 8 divisors (see below), whose sum is σ = 43289344. Its totient is φ = 21202560.

The previous prime is 32135419. The next prime is 32135443. The reversal of 32135421 is 12453123.

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

It is not a de Polignac number, because 32135421 - 2¹ = 32135419 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 (32135401) 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, 54925 + ... + 55506.

It is an arithmetic number, because the mean of its divisors is an integer number (5411168).

Almost surely, 2^32135421 is an apocalyptic number.

It is an amenable number.

32135421 is a deficient number, since it is larger than the sum of its proper divisors (11153923).

32135421 is a wasteful number, since it uses less digits than its factorization.

32135421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110531.

The product of its digits is 720, while the sum is 21.

The square root of 32135421 is about 5668.8112510473. The cubic root of 32135421 is about 317.9274289522.

Adding to 32135421 its reverse (12453123), we get a palindrome (44588544).

The spelling of 32135421 in words is "thirty-two million, one hundred thirty-five thousand, four hundred twenty-one".