32403121 has 4 divisors (see below), whose sum is σ = 33520500. Its totient is φ = 31285744.

The previous prime is 32403109. The next prime is 32403127. The reversal of 32403121 is 12130423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12130423 = 3299 ⋅3677.

It can be written as a sum of positive squares in 2 ways, for example, as 27720225 + 4682896 = 5265^2 + 2164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32403121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32403095 and 32403104.

It is not an unprimeable number, because it can be changed into a prime (32403127) 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, 558646 + ... + 558703.

It is an arithmetic number, because the mean of its divisors is an integer number (8380125).

Almost surely, 2^32403121 is an apocalyptic number.

It is an amenable number.

32403121 is a deficient number, since it is larger than the sum of its proper divisors (1117379).

32403121 is a wasteful number, since it uses less digits than its factorization.

32403121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117378.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 32403121 is about 5692.3739336063. The cubic root of 32403121 is about 318.8078067144.

Adding to 32403121 its reverse (12130423), we get a palindrome (44533544).

The spelling of 32403121 in words is "thirty-two million, four hundred three thousand, one hundred twenty-one".