71332121 has 8 divisors (see below), whose sum is σ = 82904640. Its totient is φ = 60105168.

The previous prime is 71332103. The next prime is 71332123. The reversal of 71332121 is 12123317.

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

It is a cyclic number.

It is not a de Polignac number, because 71332121 - 2⁶ = 71332057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71332093 and 71332102.

It is not an unprimeable number, because it can be changed into a prime (71332123) 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, 85946 + ... + 86771.

It is an arithmetic number, because the mean of its divisors is an integer number (10363080).

Almost surely, 2^71332121 is an apocalyptic number.

It is an amenable number.

71332121 is a deficient number, since it is larger than the sum of its proper divisors (11572519).

71332121 is a wasteful number, since it uses less digits than its factorization.

71332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172783.

The product of its digits is 252, while the sum is 20.

The square root of 71332121 is about 8445.8345354382. The cubic root of 71332121 is about 414.7264292708.

Adding to 71332121 its reverse (12123317), we get a palindrome (83455438).

The spelling of 71332121 in words is "seventy-one million, three hundred thirty-two thousand, one hundred twenty-one".