73234138 has 4 divisors (see below), whose sum is σ = 109851210. Its totient is φ = 36617068.

The previous prime is 73234103. The next prime is 73234201. The reversal of 73234138 is 83143237.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50452609 + 22781529 = 7103^2 + 4773^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18308533 + ... + 18308536.

Almost surely, 2^73234138 is an apocalyptic number.

73234138 is a deficient number, since it is larger than the sum of its proper divisors (36617072).

73234138 is a wasteful number, since it uses less digits than its factorization.

73234138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36617071.

The product of its digits is 12096, while the sum is 31.

The square root of 73234138 is about 8557.6946662054. The cubic root of 73234138 is about 418.3802656650.

Subtracting 73234138 from its reverse (83143237), we obtain a palindrome (9909099).

The spelling of 73234138 in words is "seventy-three million, two hundred thirty-four thousand, one hundred thirty-eight".