73124121 has 24 divisors (see below), whose sum is σ = 114501600. Its totient is φ = 41385792.

The previous prime is 73124111. The next prime is 73124131. The reversal of 73124121 is 12142137.

It is an interprime number because it is at equal distance from previous prime (73124111) and next prime (73124131).

It is not a de Polignac number, because 73124121 - 2¹⁴ = 73107737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (73124111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13405 + ... + 18053.

It is an arithmetic number, because the mean of its divisors is an integer number (4770900).

Almost surely, 2^73124121 is an apocalyptic number.

It is an amenable number.

73124121 is a deficient number, since it is larger than the sum of its proper divisors (41377479).

73124121 is a wasteful number, since it uses less digits than its factorization.

73124121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773 (or 4766 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 73124121 is about 8551.2642924892. The cubic root of 73124121 is about 418.1706548131.

Adding to 73124121 its reverse (12142137), we get a palindrome (85266258).

The spelling of 73124121 in words is "seventy-three million, one hundred twenty-four thousand, one hundred twenty-one".