73544123 has 4 divisors (see below), whose sum is σ = 75531840. Its totient is φ = 71556408.

The previous prime is 73544113. The next prime is 73544131. The reversal of 73544123 is 32144537.

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: 32144537 = 409 ⋅78593.

It is a cyclic number.

It is not a de Polignac number, because 73544123 - 2²⁴ = 56766907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73544113) 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 3 ways as a sum of consecutive naturals, for example, 993803 + ... + 993876.

It is an arithmetic number, because the mean of its divisors is an integer number (18882960).

Almost surely, 2^73544123 is an apocalyptic number.

73544123 is a deficient number, since it is larger than the sum of its proper divisors (1987717).

73544123 is a wasteful number, since it uses less digits than its factorization.

73544123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987716.

The product of its digits is 10080, while the sum is 29.

The square root of 73544123 is about 8575.7870192770. The cubic root of 73544123 is about 418.9697405253.

The spelling of 73544123 in words is "seventy-three million, five hundred forty-four thousand, one hundred twenty-three".