73056138 has 16 divisors (see below), whose sum is σ = 146770176. Its totient is φ = 24242400.

The previous prime is 73056131. The next prime is 73056143. The reversal of 73056138 is 83165037.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 73056099 and 73056108.

It is not an unprimeable number, because it can be changed into a prime (73056131) 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, 25963 + ... + 28638.

It is an arithmetic number, because the mean of its divisors is an integer number (9173136).

Almost surely, 2^73056138 is an apocalyptic number.

73056138 is an abundant number, since it is smaller than the sum of its proper divisors (73714038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73056138 is a wasteful number, since it uses less digits than its factorization.

73056138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54829.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 73056138 is about 8547.2883419246. The cubic root of 73056138 is about 418.0410244909.

The spelling of 73056138 in words is "seventy-three million, fifty-six thousand, one hundred thirty-eight".