73446121 has 4 divisors (see below), whose sum is σ = 83938432. Its totient is φ = 62953812.

The previous prime is 73446097. The next prime is 73446127. The reversal of 73446121 is 12164437.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12164437 = 61 ⋅199417.

It is a cyclic number.

It is not a de Polignac number, because 73446121 - 2⁷ = 73445993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73446121.

It is not an unprimeable number, because it can be changed into a prime (73446127) 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, 5246145 + ... + 5246158.

It is an arithmetic number, because the mean of its divisors is an integer number (20984608).

Almost surely, 2^73446121 is an apocalyptic number.

It is an amenable number.

73446121 is a deficient number, since it is larger than the sum of its proper divisors (10492311).

73446121 is a wasteful number, since it uses less digits than its factorization.

73446121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10492310.

The product of its digits is 4032, while the sum is 28.

The square root of 73446121 is about 8570.0712365767. The cubic root of 73446121 is about 418.7835569455.

The spelling of 73446121 in words is "seventy-three million, four hundred forty-six thousand, one hundred twenty-one".