73711121 has 8 divisors (see below), whose sum is σ = 80475744. Its totient is φ = 66957120.

The previous prime is 73711109. The next prime is 73711147. The reversal of 73711121 is 12111737.

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 73711121 - 2¹⁰ = 73710097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73711721) 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, 21305 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (10059468).

Almost surely, 2^73711121 is an apocalyptic number.

It is an amenable number.

73711121 is a deficient number, since it is larger than the sum of its proper divisors (6764623).

73711121 is a wasteful number, since it uses less digits than its factorization.

73711121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its digits is 294, while the sum is 23.

The square root of 73711121 is about 8585.5180973544. The cubic root of 73711121 is about 419.2866215759.

Adding to 73711121 its reverse (12111737), we get a palindrome (85822858).

The spelling of 73711121 in words is "seventy-three million, seven hundred eleven thousand, one hundred twenty-one".